Startseite Crystal structure of (E)-6-(4-ethylpiperazin-1-yl)-2-(3-fluorobenzylidene)-3,4-dihydronaphthalen-1(2H)-one, C23H25FN2O
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Crystal structure of (E)-6-(4-ethylpiperazin-1-yl)-2-(3-fluorobenzylidene)-3,4-dihydronaphthalen-1(2H)-one, C23H25FN2O

  • Lu Yu , Ji-Peng Wang , Mei-Dan Wang , Wen-Xiao Yu , Yao-Tian Cui , Hao-Xue Gao , Yong-Jun Liu und Gui-Ge Hou ORCID logo EMAIL logo
Veröffentlicht/Copyright: 3. April 2024

Abstract

C23H25FN2O, triclinic, P 1 (no. 2), a = 6.5011(2) Å, b = 11.2794(4) Å, c = 14.0796(6) Å, α = 110.246(4)°, β = 97.236(3)°, γ = 98.335(2)°, V = 941.01(6) Å3, Z = 2, Rgt (F) = 0.0476, wRref (F 2) = 0.1366, T = 293 K.

CCDC no.: 2332991

The crystal structure is shown in the figure. Displacement ellipsoids are drawn at the 30 % probability level. Tables 1 and 2 contain details on crystal structure and measurement conditions and a list of the atoms including atomic coordinates and displacement parameters.

Table 1:

Data collection and handling.

Crystal: Yellow block
Size: 0.15 × 0.13 × 0.10 mm
Wavelength: Cu Kα radiation (1.54178 Å)
μ: 0.69 mm−1
Diffractometer, scan mode: SuperNova
θ max, completeness: 73.8°, >99 %
N(hkl)measured, N(hkl)unique, R int: 14,800, 3721, 0.024
Criterion for I obs, N(hkl)gt: I obs > 2σ(I obs), 3395
N(param)refined: 245
Programs: CrysAlisPRO [1], SHELX [2, 3]
Table 2:

Fractional atomic coordinates and isotropic or equivalent isotropic displacement parameters (Å2).

Atom x y z U iso*/U eq
C1 1.1192 (2) 0.22187 (14) 0.09765 (11) 0.0367 (3)
C2 0.91358 (19) 0.17804 (12) 0.02154 (10) 0.0333 (3)
C3 0.7120 (2) 0.17249 (14) 0.06413 (10) 0.0377 (3)
H3A 0.596591 0.115287 0.009579 0.045*
H3B 0.678803 0.257850 0.087683 0.045*
C4 0.7299 (2) 0.12527 (14) 0.15274 (10) 0.0391 (3)
H4A 0.603104 0.132011 0.182304 0.047*
H4B 0.739950 0.035066 0.126926 0.047*
C5 0.9158 (2) 0.22839 (12) 0.33858 (10) 0.0332 (3)
H5 0.789688 0.201500 0.356809 0.040*
C6 1.0955 (2) 0.29448 (12) 0.41698 (10) 0.0325 (3)
C7 1.2853 (2) 0.32830 (13) 0.38452 (10) 0.0365 (3)
H7 1.409173 0.368293 0.433309 0.044*
C8 1.2896 (2) 0.30316 (13) 0.28254 (10) 0.0362 (3)
H8 1.416403 0.327773 0.263856 0.043*
C9 1.10892 (19) 0.24154 (12) 0.20552 (10) 0.0314 (3)
C10 0.92115 (19) 0.20228 (12) 0.23548 (10) 0.0315 (3)
C11 0.9237 (2) 0.15400 (13) −0.07730 (10) 0.0351 (3)
H11 1.058834 0.158119 −0.092789 0.042*
C12 0.7489 (2) 0.12184 (12) −0.16484 (10) 0.0330 (3)
C13 0.7657 (2) 0.03678 (14) −0.26175 (11) 0.0414 (3)
H13 0.884262 −0.000233 −0.270254 0.050*
C14 0.6048 (3) 0.00868 (14) −0.34410 (11) 0.0454 (4)
C15 0.4289 (2) 0.06224 (14) −0.33743 (11) 0.0436 (3)
H15 0.323100 0.041018 −0.394981 0.052*
C16 0.4133 (2) 0.14883 (14) −0.24257 (11) 0.0393 (3)
H16 0.296638 0.187975 −0.236045 0.047*
C17 0.5705 (2) 0.17773 (13) −0.15700 (10) 0.0350 (3)
H17 0.556929 0.235234 −0.093399 0.042*
C18 1.2817 (2) 0.36874 (16) 0.59737 (11) 0.0431 (3)
H18A 1.387071 0.421999 0.578309 0.052*
H18B 1.336297 0.293655 0.598829 0.052*
C19 1.2444 (2) 0.44441 (14) 0.70348 (11) 0.0417 (3)
H19A 1.375352 0.467765 0.753162 0.050*
H19B 1.201972 0.523421 0.703566 0.050*
C20 0.8866 (2) 0.33917 (15) 0.65923 (11) 0.0409 (3)
H20A 0.845014 0.418449 0.659484 0.049*
H20B 0.774742 0.291008 0.678877 0.049*
C21 0.9130 (2) 0.26050 (15) 0.55183 (11) 0.0435 (3)
H21A 0.941764 0.177807 0.550021 0.052*
H21B 0.782283 0.244486 0.503628 0.052*
C22 1.0481 (2) 0.44190 (14) 0.83798 (10) 0.0412 (3)
H22A 0.925817 0.394120 0.851295 0.049*
H22B 1.016742 0.524341 0.840573 0.049*
C23 1.2364 (3) 0.46564 (16) 0.92225 (11) 0.0502 (4)
H23A 1.269932 0.384601 0.919697 0.075*
H23B 1.202438 0.509687 0.988194 0.075*
H23C 1.355975 0.517684 0.912241 0.075*
F1 0.6224 (2) −0.07580 (10) −0.43747 (7) 0.0724 (4)
N1 1.08606 (17) 0.32706 (11) 0.52014 (9) 0.0369 (3)
N2 1.08151 (17) 0.37027 (10) 0.73407 (8) 0.0334 (3)
O1 1.28790 (16) 0.24587 (15) 0.07123 (9) 0.0617 (4)

1 Source of material

Based on literature synthetic techniques [4, 5], N-ethylpiperazine (18.27 g, 0.16 mol) and potassium carbonate (27.64 g, 0.2 mol) have been delivered to N,N-dimethylformamide (2 mL), and after stirring at 313 K overnight, 6-fluoro-3,4-dihydronaphthalen-1(2H)-one (3.28 g, 0.02 mol) and N,N-dimethylformamide (0.5 mL) had been combined and introduced dropwise to the response gadget and the temperature of mixture was adjusted to 373 K. The reaction lasted for 5.5 h. It used to be monitored via thin-layer chromatography (TLC, dichloromethane:methyl alcohol = 10:1, v:v). The product was filtered and the filtrate used to be washed with dichloromethane. The solvent was once eliminated by using attention underneath decreased pressure. Separation and purification used to be carried out by way of a silica gel column with the use of dichloromethane:methyl alcohol (20:1, v:v) as eluent. Intermediates have been obtained. Using 25 % sodium hydroxide solution (5.0 mL) as a catalyst, 6-(4-ethylpiperazinyl)-3,4-dihydronaphthalen-1(2H)-one (0.26 g, 1.00 mmol) used to be blended with 3-fluorobenzaldehyde (0.274 g, 2 mmol) in 10 mL of methanol for 12 h at room temperature below nitrogen atmosphere. The filter residue was once dissolved using dichloromethane and washed with distilled water. The accumulated natural segment used to be dried over anhydrous sodium sulfate. The solvent used to be eliminated by way of awareness underneath decreased pressure. The received product is soluble in a combination of dichloromethane (2 mL) and methyl alcohol (2 mL), and slowly evaporated at room temperature to achieve appropriate colourless crystals, (E)-6-(4-ethylpiperazin-1-yl)-2-(3-fluorobenzylidene)-3,4-dihydronaphthalen-1(2H)-one.

2 Experimental details

The H atoms were placed in idealized positions and treated as riding on their parent atoms, with d(C–H) = 0.96 Å (methyl), U iso(H) = 1.5U eq(C), and d(C–H) = 0.97 Å (methylene), U iso(H) = 1.2U eq(C), and d(C–H) = 0.93 Å (aromatic), U iso(H) = 1.2U eq(C).

3 Comment

3,4-Dihydronaphthalen-1(2H)-one is a potential active fragment of anti-tumor and anti-inflammatory compounds [4, 6]. In latest years, some active compounds, such as (2-((2-fluoro-4-(trifluoromethyl)phenyl)(hydroxy)methyl)-7-methoxy-3,4-dihydronaphthalen-1((2H))-one) [7], (E)-7-bromo-2-(4-(4-methylpiperazin)benzylidene)-3,4-dihydronaphthhalen-1(2H)-one [8] and (E)-7-bromo-2-(4-methoxybenzylidene)-3,4-dihydronaphthalen-1(2H)-one [9] were reported. Nitrogen-containing heterocyclic compounds have accurate organic activity, are noticeably secure in the human body, and have excessive operational efficiency. They are convenient to have interaction with DNA through hydrogen bonds [10]. So we use N-ethylpiperazine for substitution in this study. The substitution of benzylidene can decorate anti-inflammatory activity [11]. The introduction of α,β-unsaturated ketone can make 3,4-dihydronaphthalene-1(2H)-one have two pharmacophores and minimize cytotoxicity, as proven by our group [12, 13]. Some 3,4-dihydronaphthalene-1(2H)-one derivatives substituted by way of electron withdrawing businesses have been proven to have anti-neuroinflammatory effects [4]. Therefore, we are changing benzaldehyde with electron withdrawing fluorophenyl group, which can amplify the lipophilicity of drugs [14]. In this study, N-ethylpiperazine and 3,4-dihydronaphthalen-1(2H)-one were used to shape an intermediate through nucleophilic addition, further to generate the title compound, (E)-6-(4-ethylpiperazin)-2-(3-fluorobenzidene)-3,4-dihydronaphthhalen-1(2H)-one, through Claisen–Schmidt condensation with 3-fluorobenzaldehyde.

Single-crystal structure analysis reveals that the title compound crystallizes in the triclinic system P 1 , with one molecule in the asymmetric unit. The bond lengths and bond angles of the title compound are within the normal range and are consistent with the compounds reported previously [7], [8], [9]. The pharmacophore of the title compound is 3,4-dihydronaphthalene-1(2H)-one, which was substituted by N-ethylpiperazine at C6 position and by 3-fluorobenzidene at C2 position. 3-Fluorobenzene is linked to the central 3,4-dihydronaphthalene-1(2H)-one ring by a C(2)=C(11) double bond. It adopts the E stereochemistry of the alkene double bond [5, 7, 8]. The bond length of C(2)=C(11) is 1.3348(18) Å. The torsion angle of O(1)=C(1)–C(2)–C(11) is about −6.5(2)°, and the torsion angle of C(1)–C(2)–C(11)–C(12) is about −173.92(12)°, respectively. 3,4-Dihydronaphthalene-1(2H)-one ketone is now not coplanar with 3-fluorobenzidene, and their dihedral angle is about 49.88(3)°. In addition, N-ethylpiperazine ring takes a “chair” configuration [15]. The torsion angle of N(1)–C(21)–C(20)–N(2) is 56.88(17)°, and the torsion angle of N(1)–C(18)–C(19)–N(2) is −56.76(17)°, respectively. The N(2) atom at the terminal of the molecule is replaced by an ethyl group. The bond length of N(2)–C(22) is 1.4674(17) Å. As a whole, the title compound appears as a linear structure.


Corresponding author: Gui-Ge Hou, School of Pharmacy, Binzhou Medical University, Yantai, 264003, P.R. China, E-mail:

Funding source: Shandong Provincial Natural Science Foundation

Award Identifier / Grant number: (Nos. ZR2022MH159 and ZR2023MH190)

Funding source: Shandong Province Science and Technology-based Small and Medium-sized Enterprises Innovation Capacity Enhancement Project

Award Identifier / Grant number: (No. 2023TSGC0870)

  1. Author contributions: All the authors have accepted responsibility for the entire content of this submitted manuscript and approved submission.

  2. Research funding: Shandong Provincial Natural Science Foundation (Nos. ZR2022MH159 and ZR2023MH190) and Shandong Province Science and Technology-based Small and Medium-sized Enterprises Innovation Capacity Enhancement Project (No. 2023TSGC0870).

  3. Conflict of interest: The authors declare no conflicts of interest regarding this article.

References

1. Rigaku, O. D. CrysAlisPRO; Rigaku Oxford Diffraction Ltd: Yarnton, Oxfordshire, England, 2017.Suche in Google Scholar

2. Sheldrick, G. M. A short history of SHELX. Acta Crystallogr. 2008, A64, 112–122; https://doi.org/10.1107/s0108767307043930.Suche in Google Scholar

3. Sheldrick, G. M. Crystal structure refinement with SHELXL. Acta Crystallogr. 2015, C71, 3–8; https://doi.org/10.1107/s2053229614024218.Suche in Google Scholar

4. Sun, Y., Zhou, Y. Q., Liu, Y. K., Zhang, H. Q., Hou, G. G., Meng, Q. G., Hou, Y. Potential anti-neuroinflammatory NF-κB inhibitors based on 3,4-dihydronaphthalen-1(2H)-one derivative. J. Enzyme Inhib. Med. Chem. 2020, 35, 1631–1640; https://doi.org/10.1080/14756366.2020.1804899.Suche in Google Scholar PubMed PubMed Central

5. Luan, M. Z., Wang, H. Y., Zhang, M., Song, J., Hou, G. G., Zhao, F. L., Meng, Q. G. Crystal structure of (E)-2-(3,5-bis(trifluoromethyl) benzylidene)-7-methoxy-3,4-dihydronaphthalen-1(2H)-one, C20H14F6O2. Z. Kristallogr. N. Cryst. Struct. 2021, 236, 61–63; https://doi.org/10.1515/ncrs-2020-0446.Suche in Google Scholar

6. Barlow, J. W., Zhang, T., Woods, O., Adam, J., John, J. W. Novel mast cell-stabilising amine derivatives of 3,4-dihydronaphthalen-1(2H)-one and 6,7,8,9-tetrahydro-5H-benzo[7]annulen-5-one. Med. Chem. 2011, 7, 213–223; https://doi.org/10.2174/157340611795564222.Suche in Google Scholar PubMed

7. Li, Y. L., Meng, Q. G., Hou, G. G., Geng, Z. K. Crystal structure of 2-((2-fluoro-4-(trifluoromethyl)phenyl)(hydroxy)methyl)-7-methoxy- 3,4-dihydronaphthalen-1(2H)-one, C19H16F4O3. Z. Kristallogr. N. Cryst. Struct. 2023, 238, 1157–1159; https://doi.org/10.1515/ncrs-2023-0373.Suche in Google Scholar

8. Qi, Q. B., Li, W. X., Hou, G. G., Li, C. B. Crystal structure of (E)-7-bromo-2-(4-(4-methylpiperazin-1-yl)benzylidene)-3,4-dihydronaphthalen-1(2H)-one, C22H23BrN2O. Z. Kristallogr. N. Cryst. Struct. 2023, 238, 235–237; https://doi.org/10.1515/ncrs-2022-0590.Suche in Google Scholar

9. Zhang, Y. L., Liu, S. L., Hou, G. G., Zhang, X. F., Wang, L., Xin, W. Y. Crystal structure of (E)-7-bromo-2-(4-methoxybenzylidene)-3,4-dihydronaphthalen-1(2H)-one, C18H15BrO2. Z. Kristallogr. N. Cryst. Struct. 2022, 237, 945–947; https://doi.org/10.1515/ncrs-2022-0315.Suche in Google Scholar

10. Ozkay, Y., Işikdaǧ, I., Incesu, Z., Akalin, G. Synthesis of 2-substituted-N-[4-(1-methyl-4,5-diphenyl-1H-imidazole-2-yl)phenyl]acetamide derivatives and evaluation of their anticancer activity. Eur. J. Med. Chem. 2010, 45, 3320–3328; https://doi.org/10.1016/j.ejmech.2010.04.015.Suche in Google Scholar PubMed

11. Gao, C. L., Hou, G. G., Liu, J., Ru, T., Xu, Y. Z., Zhao, S. Y., Ye, H., Zhang, L. Y., Chen, K. X., Guo, Y. W., Pang, T., Li, X. W. Synthesis and target identification of benzoxepane derivatives as potential anti-neuroinflammatory agents for ischemic stroke. Angew. Chem., Int. Ed. 2020, 59, 2429–2439; https://doi.org/10.1002/anie.201912489.Suche in Google Scholar PubMed

12. Zhang, X. F., Luan, M. Z., Yan, W. B., Zhao, F. L., Hou, Y., Hou, G. G., Meng, Q. G. Anti-neuroinflammatory effects of novel 5,6-dihydrobenzo [h]quinazolin-2-amine derivatives in lipopolysaccharide-stimulated BV2 microglial cells. Eur. J. Med. Chem. 2022, 235, 114322; https://doi.org/10.1016/j.ejmech.2022.114322.Suche in Google Scholar PubMed

13. Luan, M. Z., Zhang, X. F., Yang, Y., Meng, Q. G., Hou, G. G. Anti-inflammatory activity of fluorine-substituted benzo[h]quinazoline-2-amine derivatives as NF-κB inhibitors. Bioorg. Chem. 2023, 132, 106360; https://doi.org/10.1016/j.bioorg.2023.106360.Suche in Google Scholar PubMed

14. Swallow, S. Fluorine in medicinal chemistry. Prog. Med. Chem. 2015, 54, 65–133; https://doi.org/10.1016/bs.pmch.2014.11.001.Suche in Google Scholar PubMed

15. Yuan, X. Q., Zhao, L. H., Zhang, J. J., Hou, G. G. Crystal structure of (E)-7-methoxy-2-(4-morpholinobenzylidene)-3,4-dihydronaphthalen-1(2H)-one, C22H23NO3. Z. Kristallogr. N. Cryst. Struct. 2023, 238, 363–365; https://doi.org/10.1515/ncrs-2022-0578.Suche in Google Scholar

Received: 2024-02-15
Accepted: 2024-03-20
Published Online: 2024-04-03
Published in Print: 2024-06-25

© 2024 the author(s), published by De Gruyter, Berlin/Boston

This work is licensed under the Creative Commons Attribution 4.0 International License.

Artikel in diesem Heft

  1. Frontmatter
  2. New Crystal Structures
  3. The crystal structure of tris((Z)-2-hydroxy-N-((E)-pyridin-2-ylmethylene)benzohydrazonato-k2O,N)europium(III), C39H30N9O6Eu
  4. Crystal structure of (E)-3-(benzylideneamino)-2-phenylthiazolidin-4-one, C16H14N2OS
  5. The crystal structure of (E)-4-fluoro-N′-(1-(o-tolyl)ethylidene)benzohydrazide, C16H15FN2O
  6. Crystal structure of (6-chloropyridin-3-yl)methyl 2-(6-methoxynaphthalen-2-yl)propanoate, C20H18ClNO3
  7. Crystal structure of methyl 3-methoxy-4-(2-methoxy-2-oxoethoxy)benzoate, C12H14O6
  8. The crystal structure of bis[(4-methoxyphenyl)(picolinoyl)amido-κ2 N:N′]copper(II), C26H22CuN4O4
  9. The crystal structure of poly[di(μ2-aqua)-diaqua-bis(3-aminopyridine-4-carboxylate-κ2 O: O′)-tetra(μ2-3-aminopyridine-4-carboxylate-κ2 O: O′)-dineodymium(III), [Nd2(C6H5N2O2)6(H2O)4] n
  10. The crystal structure of t-butyl 7-[3-(4-fluorophenyl)-1-(propan-2-yl)-1H-indol-2-yl]-3,5-dihydroxyhept-6-enoate, C28H34FNO4
  11. Crystal structure of catena-poly[(benzylamine-κ1 N)-(sorbato-κ1 O)-(μ2-sorbato-κ2 O,O′)-copper(II), C19H23CuNO4
  12. Crystal structure of (4-(2-chlorophenyl)-1H-pyrrol-3-yl)(ferrocenyl) methanone, C21H16ClFeNO
  13. The crystal structure of N-[4-(4-bromophenyl)-1,3-thiazol-2-yl]-3-(2-methylphenyl)-2-sulfanylprop-2-enamide hydrate, C19H17BrN2O2S2
  14. The crystal structure of N′-{5-[2-(2,6-dimethylphenoxy) acetamido]-4-hydroxy-1,6-diphenylhexan-2-yl}-3-methyl-2-(2-oxo-1,3-diazinan-1-yl)butanamide hydrate
  15. Crystal structure of 2-(naphthalen-1-yl)ethyl 2-(6-methoxynaphthalen-2-yl)propanoate, C26H24O3
  16. Crystal structure of naphthalen-1-ylmethyl 2-(6-methoxynaphthalen-2-yl)propanoate, C25H22O3
  17. Crystal structure of poly[diaqua- (μ4-5-(1H-1,2,4-triazol-1-yl)benzene-1,3-dicarboxylato-κ5N:O,O’:O’’:O’’’)calcium(II), C10H9CaN3O6
  18. Crystal structure of (E)-N′-(4-((E)-3-(dimethylamino)acryloyl)-3-hydroxyphenyl)-N, N-dimethylformimidamide, C14H19N3O2
  19. Crystal structure of (E)-3-(dimethylamino)-1-(2-hydroxy-4,6-dimethoxyphenyl)prop-2-en-1-one, C13H17NO4
  20. Crystal structure of (2-chloropyridin-3-yl)methyl-2-(6-methoxynaphthalen-2-yl)propanoate, C20H18ClNO3
  21. The crystal structure of diethyl 4-(3,4-dimethylphenyl)-2,6-dimethyl-1,4-dihydropyridine-3,5-dicarboxylate, C21H27NO4
  22. Crystal structure of (8R,9S,10R,13S,14S,17S)-17-hydroxy-10,13-dimethyl-17-((4-(2-phenylpropyl)phenyl)ethynyl)-1,2,6,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-3H-cyclopenta[a]phenanthren-3-one, C36H42O2
  23. Synthesis and crystal structure of 4-(4-cyclopropylnaphthalen-1-yl)-2,4-dihydro-3H-1,2,4-triazole-3-thione, C15H13N3S
  24. Crystal structure of catena-poly[aqua-(2,6-di-(2-pyridyl)-pyridine-κ3 N,N′, N″)(μ2-1,4-naphthalene dicarboxylato-κ2 O,O′)nickel(II)], C27H19NiN3O5
  25. Crystal structure of 3-(diphenylphosphoryl)-3-hydroxy-1-phenylpropan-1-one, C21H19O3P
  26. The crystal structure of R,S-{N-[(2-oxidonaphthalen-1-yl)methylidene]phenylglycinato}divinylsilicon, C23H19NO3Si
  27. The crystal structure of 1,2,4-tris(bromomethyl)benzene, C9H9Br3
  28. Crystal structure of chlorido-[4-(pyridin-2-yl)benzaldehyde-κ2 N,C]-(diethylamine-κ1 N)platinum(II), C16H18ClN2OPt
  29. Crystal structure of 3-(methoxycarbonyl)-1-(4-methoxyphenyl)-2,3,4,9- tetrahydro-1H-pyrido[3,4-b]indol-2-ium chloride hydrate, C40H48Cl2N4O9
  30. The crystal structure of 1-(2-chlorobenzyl)-3-(3-chlorophenyl)urea, C14H12Cl2N2O
  31. Hydrothermal synthesis and crystal structure of aqua-tris(4-acetamidobenzoato-κ2 O,O′)-(1,10-phenanthroline-κ2 N,N′)terbium(III) hydrate C39H36N5O11Tb
  32. The crystal structure of zwitterionic 3-aminoisonicotinic acid, C6H6N2O2
  33. The crystal structure of bis{[monoaqua-μ2-4-[(pyridine-4-carbonyl)-amino]-phthalato-κ3 N:O,O′-(2,2′-bipyridine κ2 N,N′)copper(II)]}decahydrate, C48H56N8O22Cu2
  34. Crystal structure of poly[μ10-4,4′-methylene-bis(oxy)benzoatodipotassium], C15H10K2O6
  35. The crystal structure of catena-poly[[tetraaqua[(μ2-1,4-di(4-methyl-1-imidazolyl)benzene] cobalt(II)]bis(formate)], C16H24CoN4O8
  36. The crystal structure of (E)-2-chloro-5-((2-(nitromethylene)imidazolidin-1-yl)methyl)pyridine, C10H11ClN4O2
  37. The crystal structure of (E)-1-(((2-amino-4,5-dimethylphenyl)iminio)methyl)naphthalen-2-olate, C19H18N2O
  38. Crystal structure of N-(acridin-9-yl)-2-(4-methylpiperidin-1-yl) acetamide monohydrate, C21H25N3O2
  39. The crystal structure of dichlorido-bis(3-methyl-3-imidazolium-1-ylpropionato-κ2 O,O′)-zinc(II), C14H20Cl2N4O4Zn
  40. The crystal structure of 2,8-diethyl-1,3,7,9-tetramethyl-4λ4,5λ4-spiro[dipyrrolo[1,2-c:2′,1′-f][1,3,2]diazaborinine-5,2′-naphtho[1,8-de][1,3,2]dioxaborinine], C25H29BN2O2
  41. The crystal structure of 5-tert-butyl-2-(5-tert-butyl-3-iodo-benzofuran-2-yl)-3-iodobenzofuran, C24H24I2O2
  42. Synthesis and crystal structure of methyl 2-{[4-(4-cyclopropyl-1-naphthyl)-4H-1,2,4-triazole-3-yl]thio} acetate, C18H17N3O2S
  43. The crystal structure of n-propylammonium bis(2,3-dimethylbutane-2,3-diolato)borate-boric acid (1/1), [C3H10N][C12H24BO4]·B(OH)3
  44. Crystal structure of methyl 1-(2-bromophenyl)-2,3,4,9-tetrahydro-1H-pyrido[3,4-b]indole-3-carboxylate, C19H17BrN2O2
  45. Crystal structure of (4-bromobenzyl)triphenylphosphonium bromide ethanol solvate, C52H48Br4OP2
  46. The crystal structure of unsymmetrical BOPHY C26H27BN4
  47. The crystal structure of Tb3B5O11(OH)2
  48. The crystal structure of (Z)-4-ethyl-2-((4-ethyl-3,5-dimethyl-1H-pyrrol-2-yl)methylene)-3,5-dimethyl-2H-pyrrol-1-ium 2,2'-spirobi[naphtho[1,8-de][1,3,2]dioxaborinin]-2-uide, C37H37BN2O4
  49. Crystal structure of bis(methylammonium) hexadecaselenidopalladate(II), (CH3NH3)2PdSe16
  50. The crystal structure of (2-diphenylphosphanylphenyl) 2-[7-(dimethylamino)-2-oxochromen-4-yl]acetate, C31H26NO4P
  51. Crystal structure of (E)-6-(4-ethylpiperazin-1-yl)-2-(3-fluorobenzylidene)-3,4-dihydronaphthalen-1(2H)-one, C23H25FN2O
  52. The structure of RUB-56, (C6H16N)8 [Si32O64(OH)8]·32 H2O, a hydrous layer silicate (2D-zeolite) that contains microporous levyne-type silicate layers
  53. Crystal structure of 4-amino-3,5-dibromobenzonitrile, C7H4Br2N2
  54. Crystal structure of 2-(naphthalen-1-yl)ethyl 2-acetoxybenzoate, C21H18O4
  55. Single-crystal structure determination of Tm3B12O19(OH)7
  56. Crystal structure determination of NdB3.6O7
  57. The crystal structure of NdB6O8(OH)5·H3BO3
  58. Crystal structure of 2-(5-ethylpyridin-2-yl)ethyl 2-(6-methoxynaphthalen-2-yl)propanoate, C23H25NO3
  59. Crystal structure of N-(1-(3,4-dimethoxyphenyl)-2-methylpropyl)aniline, C18H23NO2
  60. Crystal structure of Ba6Cd12Mn4SiF48
  61. Synthesis and crystal structure of 5-fluoro-1-methyl-2-oxo-3-(2-oxochroman-4-yl)indolin-3-yl acetate, C20H16FNO5
  62. The crystal structure of 6-methacryloylbenzo[d][1,3]dioxol-5-yl 4-nitrobenzenesulfonate, C17H13NO8S
  63. Crystal structure of ethyl 2-(3-benzyl-4-oxo-3,4-dihydrophthalazin-1-yl)- 2,2-difluoroacetate, C19H16F2N2O3
  64. The crystal structure of tetrakis(μ 2-(1H-benzimidazole-2-methoxo-κ2 N,O:O:O)-(n-butanol-κO)-chlorido)-tetranickel(II), C48H68Cl4N8O8Ni4
  65. Synthesis and crystal structure of trans-tetraaqua-bis((1-((7-hydroxy-3-(4-methoxy-3-sulfonatophenyl)-4-oxo-4H-chromen-8-yl)methyl)piperidin-1-ium-4-carbonyl)oxy-κO)zinc(II)hexahydrate, C46H64N2O28S2Zn
  66. The crystal structure of 1-(4-carboxybutyl)-3-methyl-1H-imidazol-3-ium hexafluoridophosphate, C9H15F6N2O2P
  67. Crystal structure of 1-(4-chlorophenyl)-4-(2-furoyl)-3-phenyl-1H-pyrazol-5-ol, C20H13ClN2O3
  68. Crystal structure of dimethyl (R)-2-(3-(1-phenylethyl)thioureido)-[1,1′-biphenyl]-4,4′-dicarboxylate, C25H24N2O4S
  69. The crystal structure of 1-(3-carboxypropyl)-1H-imidazole-3-oxide, C7H10N2O3
  70. Synthesis and crystal structure of dimethyl 4,4′-(propane-1,3-diylbis(oxy))dibenzoate, C19H20O6
  71. Crystal structure of methyl-1-(p-tolyl)-2,3,4,9-tetrahydro-1H-pyrido[3,4-b]indole-3-carboxylate, C20H20N2O2
  72. The crystal structure of 1-(1-adamantan-1-yl)ethyl-3-(3-methoxyphenyl)thiourea, C20H28N2OS
  73. The crystal structure of N,N′-carbonylbis(2,6-difluorobenzamide), C15H8F4N2O3
Heruntergeladen am 2.11.2025 von https://www.degruyterbrill.com/document/doi/10.1515/ncrs-2024-0066/html?lang=de
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