Home Crystal structure of ethyl 2-amino-4-(3,4-dimethylphenyl)-7-methyl-5-oxo-4H,5H-pyrano[4,3-b]pyran-3-carboxylate, C20H21NO5
Article Open Access

Crystal structure of ethyl 2-amino-4-(3,4-dimethylphenyl)-7-methyl-5-oxo-4H,5H-pyrano[4,3-b]pyran-3-carboxylate, C20H21NO5

  • Gao Yan EMAIL logo
Published/Copyright: August 8, 2018
Download Article (PDF)
Become an author with De Gruyter Brill
Submit Manuscript Author Information
Zeitschrift für Kristallographie - New Crystal Structures
From the journal Zeitschrift für Kristallographie - New Crystal Structures Volume 233 Issue 6

Abstract

C20H21NO5, orthorhombic, Pccn (no. 56), a = 15.114(2) Å, b = 17.574(3) Å, c = 14.123(2) Å, V = 3751.3(10) Å3, Z = 8, Rgt(F) = 0.0626, wRref(F2) = 0.2130, T = 293 K.

CCDC no.: 1851923

The crystal structure is shown in the figure. 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:Colourless block
Size:0.33 × 0.29 × 0.24 mm
Wavelength:Mo Kα radiation (0.71073 Å)
μ:0.09 mm−1
Diffractometer, scan mode:Bruker APEX-II CCD, φ and ω
θmax, completeness:25.0°, 99%
N(hkl)measured, N(hkl)unique, Rint:17246, 3271, 0.077
Criterion for Iobs, N(hkl)gt:Iobs > 2 σ(Iobs), 1879
N(param)refined:236
Programs:Olex2 [6], SHELX [7], Bruker [8]
Table 2:

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

AtomxyzUiso*/Ueq
N10.56606(17)0.11697(14)0.56109(16)0.0684(8)
H1A0.5445110.0732810.5462240.082*
H1B0.5789510.1269220.6190960.082*
O10.52503(16)0.09589(11)0.26536(14)0.0738(7)
O20.51798(18)0.03628(13)0.40470(15)0.0901(8)
O30.61270(13)0.23495(10)0.53707(12)0.0582(6)
O40.66037(15)0.36574(13)0.24665(16)0.0806(7)
O50.70564(13)0.41488(11)0.38271(15)0.0673(6)
C10.4847(3)0.0377(3)0.1210(3)0.143(2)
H1C0.465397−0.0085810.0913500.214*
H1D0.4413380.0767620.1108560.214*
H1E0.5401340.0532390.0939470.214*
C20.4956(3)0.0252(2)0.2207(3)0.0972(13)
H2A0.539013−0.0145140.2313520.117*
H2B0.4399320.0090780.2483090.117*
C30.5339(2)0.09437(17)0.3596(2)0.0624(8)
C40.56393(18)0.16561(15)0.39900(18)0.0527(7)
C50.56934(18)0.23635(15)0.33679(18)0.0532(7)
H50.5956860.2225590.2757550.064*
C60.62827(17)0.29416(15)0.38566(18)0.0498(7)
C70.64356(18)0.29264(15)0.47954(18)0.0508(7)
C80.57951(19)0.16942(15)0.49403(19)0.0543(7)
C90.68814(19)0.35201(16)0.5287(2)0.0598(8)
H90.6978210.3490230.5936290.072*
C100.7156(2)0.41196(17)0.4791(2)0.0637(8)
C110.7577(3)0.48353(18)0.5172(3)0.0897(11)
H11A0.7709150.5173220.4657300.135*
H11B0.7176260.5080280.5602570.135*
H11C0.8113740.4707690.5499370.135*
C120.66338(18)0.35716(16)0.3317(2)0.0582(8)
C130.47794(18)0.27170(15)0.31964(18)0.0527(7)
C140.4245(2)0.29292(19)0.3952(2)0.0715(9)
H140.4439400.2845080.4568270.086*
C150.3429(2)0.32631(19)0.3804(3)0.0790(10)
H150.3084560.3397590.4322990.095*
C160.3112(2)0.34021(18)0.2902(3)0.0755(10)
C170.3636(2)0.31984(19)0.2129(2)0.0740(10)
C180.4468(2)0.28489(17)0.2298(2)0.0634(8)
H180.4813430.2704690.1783380.076*
C190.3354(3)0.3340(3)0.1117(3)0.1219(17)
H19A0.3804680.3159410.0694310.183*
H19B0.2810710.3075060.0993650.183*
H19C0.3267310.3875710.1021360.183*
C200.2202(2)0.3783(2)0.2781(3)0.1111(15)
H20A0.2074110.3841550.2119070.167*
H20B0.1754990.3471810.3069760.167*
H20C0.2208010.4274240.3079130.167*

Source of material

The title compound was synthesized according to a reported procedure [1]. A mixture of 4-hydroxy-6-methylpyran-2-one (10 mmol), 3,4-dimethylbenzaldehyde (10 mmol), ethyl cyanacetate (10 mmol) and 4-(dimethylamino)pyridine (DMAP) (1 mmol) in ethanol (100 mL) was refluxed for 2–3 h and then cooled to room temperature. After filtering the precipitates, they were sequentially washed with ice-cooled water and ethanol and then dried.

Experimental details

H atoms were positioned geometrically and refined using a riding model, with C—H = 0.93/0.96 Å and N—H = 0.86 Å with Uiso(H) = 1.2 times Ueq(C) and 1.2 times Ueq(N).

Comment

There is a progress achieved in the synthesis of heterocyclic compounds with biological potential [1]. It is known that many pyran derivatives may have biological activities [1], [2], [3], [4].

In the crystal structure of the title compound, the 4H,5H-pyrano[4,3-b]pyran-5-one unit is almost planar. As expected the best plane of the dimethyl-phenyl group is perpendicular to the plane of the core unit (cf. the figure). Bond lengths and angles are similar to the related phenyl derivative [5].

References

Song, Y.; Li, N.; Gu, J.; Fu, S.; Peng, Z.; Zhao, C.; Zhang, Y.; Li, X.; Wang, Z.; Li, X.; Liu, G.: β-Hydroxybutyrate induces bovine hepatocyte apoptosis via an ROS-p38 signaling pathway. J. Dairy Sci. 99 (2016) 9184–9198.10.3168/jds.2016-11219Search in Google Scholar PubMed

Sun, X.; Yuan, X.; Chen, L.; Wang, T.; Wang, Z.; Sun, G.; Li, X.; Li, X.; Liu, G.: Histamine induces bovine rumen epithelial cell inflammatory response via NF-κB pathway. Cell. Physiol. Biochem. 42 (2017) 1109–1119.10.1159/000478765Search in Google Scholar PubMed

Liang, L.; Wang, F. Y.; Shi, J. F.; Hu, Q.; Zhang, L.; Ni, H. B.: One-pot synthesis of 4-arylpolyhydroquinoline derivatives and evaluation of their anti-gastric cancer activity. Lat. Am. J. Pharm. 37 (2018) 80–84.Search in Google Scholar

Li, J.; Meng, J.; Qu, D.; Zhang, Z.-D.; Li, F.; Yang, X.-H.; Li, J.-T.; Li, M.-K.: New biscoumarin and dihydropyran derivatives as antimicrobials. Res. Chem. Intermed. 41 (2015) 8257–8267.10.1007/s11164-014-1889-xSearch in Google Scholar

Song, J.: Crystal structure of 2-amino-7-methyl-5-oxo-4-phenyl-4H,5H-pyrano[4,3-b]pyran-3-carbonitrile, C16H12N2O3. Z. Kristallogr. NCS 231 (2016) 747–748.10.1515/ncrs-2015-0255Search in Google Scholar

Dolomanov, O. V.; Bourhis, L. J.; Gildea, R. J.; Howard, J. A. K.; Puschmann, H.: OLEX2: a complete structure solution, refinement and analysis program. J. Appl. Crystallogr. 42 (2009) 339–341.10.1107/S0021889808042726Search in Google Scholar

Sheldrick, G. M.: Crystal structure refinement with SHELXL. Acta Crystallogr. C71 (2015) 3–8.10.1107/S2053229614024218Search in Google Scholar PubMed PubMed Central

Bruker. SAINT, APEX2 and SADABS. Bruker AXS Inc., Madison, Wisconsin, USA (2009).Search in Google Scholar

Received: 2018-05-14
Accepted: 2018-06-29
Published Online: 2018-08-08
Published in Print: 2018-11-27

©2018 Gao Yan, published by De Gruyter, Berlin/Boston

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Articles in the same Issue

  1. Cover and Frontmatter
  2. Crystal structure of di-μ2-aqua-tetraaqua-bis(4-(1H-1,2,4-triazol-1-yl)benzoato-κN)disodium(I) C18H24N6Na2O10
  3. Crystal structure of diaqua-bis(2-bromo-4-chloro-6-formylphenolato-κ2O,O′)cobalt(II), C16H16Cl2CrN3O7
  4. Crystal structure of catena-poly[(μ2-1-(4-(1H-pyrazol-1-yl)phenyl)ethan-1-one-κ2N:O)-bis(1,1,1-trifluoro-4-oxo-4-(thiophen-2-yl)but-2-en-2-olato-κ2O,O′)copper(II)], C27H18CuF6N2O5S2
  5. Crystal structure of ethyl 2-amino-4-(3,5-difluorophenyl)-7-methyl-5-oxo-4H,5H-pyrano[4,3-b]pyran-3-carboxylate, C18H15F2NO5
  6. Crystal structure of 5,5′-dimethoxy-2,2′-[1,1′-(ethylenedioxydinitrilo)diethylidyne]diphenol, C20H24N2O6
  7. Crystal structure of (E)-1-(4-(((E)-3,5-dichloro-2-hydroxybenzylidene)amino)phenyl)ethan-1-one O-methyl oxime, C16H14Cl2N2O2
  8. Crystal structure of 2,3,9,10,16,17,23,24-octakis(2,6-dimethylphenoxy)phthalocyanine - trichloromethane (1/2), C98H84Cl6N8O8
  9. Crystal structure of methyl 2-((1-(2-(methoxycarbonyl)benzyl)-1H-1,2,3-triazol-4-yl)methoxy)-1-naphthoate, C24H21N3O5
  10. Crystal structure of catena-poly[(μ2-3,3′-thiodipropionato-κ2O:O′)-(bipyridine-κ2N,N′)copper(II)] C16H16CuN2O4S
  11. Crystal structure of [4-chloro-2-(((2-((3-ethoxy-2-oxidobenzylidene)amino)phenyl)imino)(phenyl)methyl)phenolato-κ4N,N′,O,O′}nickel(II) - ethyl acetate (1/1), C32H29ClN2NiO5
  12. Crystal structure of (4-(4-chlorophenyl)-5-ethyl-1,3-dioxane-5-carboxylato-κ2O,O′)-(5,5,7,12,12,14-hexamethyl-1,4,8,11-tetraazacyclotetradecane-κ4N,N′,N′′,N′′′)nickel(II) perchlorate monohydrate, C29H52Cl2N4NiO9
  13. Crystal structure of ethyl 2-amino-4-(3,4-dimethylphenyl)-7-methyl-5-oxo-4H,5H-pyrano[4,3-b]pyran-3-carboxylate, C20H21NO5
  14. Structure and photochromism of 1,2-bis[2-methyl-5-(3-quinolyl)-3-thienyl]-3,3,4,4,5,5-hexafluorocyclopent-1-ene, C33H20F6N2S2
  15. Crystal structure of catena-poly[diaqua-bis(μ2-3,5-di(1H-1,2,4-triazol-1-yl)benzoate-κ2N:N′)cobalt(II))] 2.5 hydrate, C22H23CoN12O8.50
  16. The crystal structure of dichlorido(1,3-dimesityl-1H-3λ4-imidazol-2-yl)(morpholine-κN)palladium(IV), C25H33Cl2N3OPd
  17. Crystal structure of catena-poly[bis(4,4′-dipyridylaminium-kN)-(μ2-germanowolframato-κ2O:O′)-(2,2′-bipyridine-κ2N,N′)copper(II)] with a Keggin-type heteropolyoxoanion, [Cu(C10H8N2)(C10H10N3)2][GeW12O40] ⋅ H2O
  18. Crystal structure of diaqua-(N-(1-(pyrazin-2-yl)ethylidene)pyridin-1-ium-4-carbohydrazonate-κ3N,N′,O)-tris[nitrato-κ2O,O′)lanthanum(III), C12H15N8O12La
  19. The crystal structure of 2-hydroxy-4-((2-hydroxy-4-methoxy-3,6-dimethylbenzoyl)oxy)-3,6-dimethylbenzoic acid–methanol (1/1), C20H24O8
  20. Crystal structure of guanidinium tetrapropylammonium bis(hydrogencarbonate) dihydrate, C15H40N4O8
  21. Crystal structure of (Z)-2-bromo-3-(3,5-di-tert-butyl-4-hydroxyphenyl)-1-phenylprop-2-en-1-one, C23H27BrO2
  22. Crystal structure of 2-(4-(4H-1,2,4-triazol-4-yl)phenyl)acetic acid, C10H9N3O4
  23. Crystal structure of 4,4′-(1,4-phenylene)bis(1H-imidazol-3-ium)bis(2-carboxybenzoate), C30H26N4O8
  24. Crystal structure of 4,4′-(4,10-diphenyl-4,10-dihydropyreno[4,5-d:9,10-d′]diimidazole-5,11-diyl)bis(N,N-diphenylaniline), C66H44N6
  25. Crystal structure of catena-poly[diaqua-bis(μ2-5-(3-(1H-imidazol-5-yl)phenyl)tetrazol-2-ido-κ2N:N′)cobalt(II)], C20H18CoN12O2
  26. Crystal structure of 1,3-dimethyl-2-(p-tolyl)-1H-perimidin-3-ium iodide 1.5 hydrate, C20H22IN2O1.5
  27. Crystal structure of 2-(4-methoxyphenyl)chromane, C16H16O2
  28. Crystal structure of poly[(μ2-2-carboxy-5-nitroisophthalato-κ2O:O′)-(μ2-4-((1H-imidazol-1-yl)methyl)pyridine-κ2N:N′)zinc(II)], C18H12N4O8Zn
  29. Crystal structure of bis(1-((2-ethyl-4-methyl-1H-imidazol-1-yl)methyl)-1H-benzo[d][1,2,3]triazole-κ2N:N′)tetraiodidodicadmium(II), [Cd2(C13H15N5)2I4]
  30. Crystal structure of tetramethylammonium bis(acetato-κ1O)-tetrakis(μ3-3-((hydroxyimino)methyl)-5-methoxy-2-oxidobenzoate-κ5O,O′:O′,N:O′′)tetrazinc(II) — N,N′-dimethylformamide — water (1/2/2), C62H96Zn4N10O28
  31. Crystal structure of poly[(μ4-5-tert-butylisophthalato-κ4O:O′:O′′:O′′′)-(1,3-dimethyl-2-imidazolidinone-κO)zinc(II)] C17H22N2O5Zn
  32. Crystal structure of [tris(2-benzimidazolylmethyl)amine-κ4N,N′,N′′,N′′′]-[(pyridine-2,6-dicarboxylato-κ2O,N)]cadmium(II)–methanol (1:3) C34H36CdN8O7
  33. The crystal structure of bis(1H-benzo[d]imidazol-2-amine-κN)-diiodidocadmium(II), C14H14CdI2N6
  34. Crystal structure of tetrakis(1H-benzimidazol-2-amine)-κN)-bis(μ2-sulfonato-κ2O:O′)dizinc(II) - methanol (1/1), C30H36N12O10S2Zn2
  35. Crystal structure of 3β-methoxy-20α-dimethylamino-pregn-5-ene, C24H41NO
  36. Crystal structure of dimethyl 4,4′-oxydibenzoate, C16H14O5
  37. Crystal structure of catena-poly[diiodido-(μ2-1,5-dimethyl-2-phenyl-4-((pyridin-3-ylmethylene)amino)-1,2-dihydro-3H-pyrazol-3-one-κ2N:O)zinc(II)], C17H16I2N4OZn
  38. Crystal structure of 4-((E)-((E)-5-(2-fluorobenzylidene)-1-((4-fluorophenyl)sulfonyl)-4-oxopiperidin-3-ylidene)methyl)benzonitrile, C26H18F2N2O3S
  39. Crystal structure of bis(acetato-κ1O)-bis(1-(pyridin-2-yl)ethan-1-one oxime-κ2N,N′)zinc(II), C18H22N4O6Zn
  40. The crystal structure of 9-butoxy-2-(hydroxymethyl)-2H-imidazo[1,5-a]quinolin-10-ium bromide, C17H21O2N2Br
  41. Crystal stucture of 2-(tert-butyl)-6-(hydroxymethyl)-4-methylphenol, C12H18O2
  42. Crystal structure of catena-poly[(2-(5-chloroquinolin-8-yloxy)-1-(pyrrolidin-1-yl)ethan-1-one-κ3N,O,O′)-(dinitrato-κ2O,O′)mercury(II)], C15H15N4O8ClHg
  43. Crystal structure of dimethyl (3aS,6R,6aS,7S)-1H,3H,6H,7H-3a,6:7,9a-diepoxybenzo[de]isochromene-3a1,6a-dicarboxylate, C16H16O7
  44. The crystal structure of 2-(dimethoxymethyl)-4-(4-methylphenyl)-1H-imidazole—petroleum ether-chloroform (3/1), C27H33Cl3N4O4
  45. Crystal structure of 8-(trifluoromethyl)imidazo[1,2-a]pyridine-3-carbaldehyde, C9H5F3N2O
  46. The crystal structure of N,N-diethyl-4,6-bis(naphthalen-2-yloxy)-1,3,5-triazin-2-amine, C27H24N4O2
  47. Crystal structure of 5-bromo-7-chloro-3,3a-dihydrocyclopenta[b]chromen-1(2H)-one, C12H8BrClO2
  48. Crystal structure of 2-(bis(4-fluorophenyl)methylene)hydrazine-1-carbothioamide, C14H11F2N3S
https://doi.org/10.1515/ncrs-2018-0106
Creative Commons
BY-NC-ND 4.0

Articles in the same Issue

  1. Cover and Frontmatter
  2. Crystal structure of di-μ2-aqua-tetraaqua-bis(4-(1H-1,2,4-triazol-1-yl)benzoato-κN)disodium(I) C18H24N6Na2O10
  3. Crystal structure of diaqua-bis(2-bromo-4-chloro-6-formylphenolato-κ2O,O′)cobalt(II), C16H16Cl2CrN3O7
  4. Crystal structure of catena-poly[(μ2-1-(4-(1H-pyrazol-1-yl)phenyl)ethan-1-one-κ2N:O)-bis(1,1,1-trifluoro-4-oxo-4-(thiophen-2-yl)but-2-en-2-olato-κ2O,O′)copper(II)], C27H18CuF6N2O5S2
  5. Crystal structure of ethyl 2-amino-4-(3,5-difluorophenyl)-7-methyl-5-oxo-4H,5H-pyrano[4,3-b]pyran-3-carboxylate, C18H15F2NO5
  6. Crystal structure of 5,5′-dimethoxy-2,2′-[1,1′-(ethylenedioxydinitrilo)diethylidyne]diphenol, C20H24N2O6
  7. Crystal structure of (E)-1-(4-(((E)-3,5-dichloro-2-hydroxybenzylidene)amino)phenyl)ethan-1-one O-methyl oxime, C16H14Cl2N2O2
  8. Crystal structure of 2,3,9,10,16,17,23,24-octakis(2,6-dimethylphenoxy)phthalocyanine - trichloromethane (1/2), C98H84Cl6N8O8
  9. Crystal structure of methyl 2-((1-(2-(methoxycarbonyl)benzyl)-1H-1,2,3-triazol-4-yl)methoxy)-1-naphthoate, C24H21N3O5
  10. Crystal structure of catena-poly[(μ2-3,3′-thiodipropionato-κ2O:O′)-(bipyridine-κ2N,N′)copper(II)] C16H16CuN2O4S
  11. Crystal structure of [4-chloro-2-(((2-((3-ethoxy-2-oxidobenzylidene)amino)phenyl)imino)(phenyl)methyl)phenolato-κ4N,N′,O,O′}nickel(II) - ethyl acetate (1/1), C32H29ClN2NiO5
  12. Crystal structure of (4-(4-chlorophenyl)-5-ethyl-1,3-dioxane-5-carboxylato-κ2O,O′)-(5,5,7,12,12,14-hexamethyl-1,4,8,11-tetraazacyclotetradecane-κ4N,N′,N′′,N′′′)nickel(II) perchlorate monohydrate, C29H52Cl2N4NiO9
  13. Crystal structure of ethyl 2-amino-4-(3,4-dimethylphenyl)-7-methyl-5-oxo-4H,5H-pyrano[4,3-b]pyran-3-carboxylate, C20H21NO5
  14. Structure and photochromism of 1,2-bis[2-methyl-5-(3-quinolyl)-3-thienyl]-3,3,4,4,5,5-hexafluorocyclopent-1-ene, C33H20F6N2S2
  15. Crystal structure of catena-poly[diaqua-bis(μ2-3,5-di(1H-1,2,4-triazol-1-yl)benzoate-κ2N:N′)cobalt(II))] 2.5 hydrate, C22H23CoN12O8.50
  16. The crystal structure of dichlorido(1,3-dimesityl-1H-3λ4-imidazol-2-yl)(morpholine-κN)palladium(IV), C25H33Cl2N3OPd
  17. Crystal structure of catena-poly[bis(4,4′-dipyridylaminium-kN)-(μ2-germanowolframato-κ2O:O′)-(2,2′-bipyridine-κ2N,N′)copper(II)] with a Keggin-type heteropolyoxoanion, [Cu(C10H8N2)(C10H10N3)2][GeW12O40] ⋅ H2O
  18. Crystal structure of diaqua-(N-(1-(pyrazin-2-yl)ethylidene)pyridin-1-ium-4-carbohydrazonate-κ3N,N′,O)-tris[nitrato-κ2O,O′)lanthanum(III), C12H15N8O12La
  19. The crystal structure of 2-hydroxy-4-((2-hydroxy-4-methoxy-3,6-dimethylbenzoyl)oxy)-3,6-dimethylbenzoic acid–methanol (1/1), C20H24O8
  20. Crystal structure of guanidinium tetrapropylammonium bis(hydrogencarbonate) dihydrate, C15H40N4O8
  21. Crystal structure of (Z)-2-bromo-3-(3,5-di-tert-butyl-4-hydroxyphenyl)-1-phenylprop-2-en-1-one, C23H27BrO2
  22. Crystal structure of 2-(4-(4H-1,2,4-triazol-4-yl)phenyl)acetic acid, C10H9N3O4
  23. Crystal structure of 4,4′-(1,4-phenylene)bis(1H-imidazol-3-ium)bis(2-carboxybenzoate), C30H26N4O8
  24. Crystal structure of 4,4′-(4,10-diphenyl-4,10-dihydropyreno[4,5-d:9,10-d′]diimidazole-5,11-diyl)bis(N,N-diphenylaniline), C66H44N6
  25. Crystal structure of catena-poly[diaqua-bis(μ2-5-(3-(1H-imidazol-5-yl)phenyl)tetrazol-2-ido-κ2N:N′)cobalt(II)], C20H18CoN12O2
  26. Crystal structure of 1,3-dimethyl-2-(p-tolyl)-1H-perimidin-3-ium iodide 1.5 hydrate, C20H22IN2O1.5
  27. Crystal structure of 2-(4-methoxyphenyl)chromane, C16H16O2
  28. Crystal structure of poly[(μ2-2-carboxy-5-nitroisophthalato-κ2O:O′)-(μ2-4-((1H-imidazol-1-yl)methyl)pyridine-κ2N:N′)zinc(II)], C18H12N4O8Zn
  29. Crystal structure of bis(1-((2-ethyl-4-methyl-1H-imidazol-1-yl)methyl)-1H-benzo[d][1,2,3]triazole-κ2N:N′)tetraiodidodicadmium(II), [Cd2(C13H15N5)2I4]
  30. Crystal structure of tetramethylammonium bis(acetato-κ1O)-tetrakis(μ3-3-((hydroxyimino)methyl)-5-methoxy-2-oxidobenzoate-κ5O,O′:O′,N:O′′)tetrazinc(II) — N,N′-dimethylformamide — water (1/2/2), C62H96Zn4N10O28
  31. Crystal structure of poly[(μ4-5-tert-butylisophthalato-κ4O:O′:O′′:O′′′)-(1,3-dimethyl-2-imidazolidinone-κO)zinc(II)] C17H22N2O5Zn
  32. Crystal structure of [tris(2-benzimidazolylmethyl)amine-κ4N,N′,N′′,N′′′]-[(pyridine-2,6-dicarboxylato-κ2O,N)]cadmium(II)–methanol (1:3) C34H36CdN8O7
  33. The crystal structure of bis(1H-benzo[d]imidazol-2-amine-κN)-diiodidocadmium(II), C14H14CdI2N6
  34. Crystal structure of tetrakis(1H-benzimidazol-2-amine)-κN)-bis(μ2-sulfonato-κ2O:O′)dizinc(II) - methanol (1/1), C30H36N12O10S2Zn2
  35. Crystal structure of 3β-methoxy-20α-dimethylamino-pregn-5-ene, C24H41NO
  36. Crystal structure of dimethyl 4,4′-oxydibenzoate, C16H14O5
  37. Crystal structure of catena-poly[diiodido-(μ2-1,5-dimethyl-2-phenyl-4-((pyridin-3-ylmethylene)amino)-1,2-dihydro-3H-pyrazol-3-one-κ2N:O)zinc(II)], C17H16I2N4OZn
  38. Crystal structure of 4-((E)-((E)-5-(2-fluorobenzylidene)-1-((4-fluorophenyl)sulfonyl)-4-oxopiperidin-3-ylidene)methyl)benzonitrile, C26H18F2N2O3S
  39. Crystal structure of bis(acetato-κ1O)-bis(1-(pyridin-2-yl)ethan-1-one oxime-κ2N,N′)zinc(II), C18H22N4O6Zn
  40. The crystal structure of 9-butoxy-2-(hydroxymethyl)-2H-imidazo[1,5-a]quinolin-10-ium bromide, C17H21O2N2Br
  41. Crystal stucture of 2-(tert-butyl)-6-(hydroxymethyl)-4-methylphenol, C12H18O2
  42. Crystal structure of catena-poly[(2-(5-chloroquinolin-8-yloxy)-1-(pyrrolidin-1-yl)ethan-1-one-κ3N,O,O′)-(dinitrato-κ2O,O′)mercury(II)], C15H15N4O8ClHg
  43. Crystal structure of dimethyl (3aS,6R,6aS,7S)-1H,3H,6H,7H-3a,6:7,9a-diepoxybenzo[de]isochromene-3a1,6a-dicarboxylate, C16H16O7
  44. The crystal structure of 2-(dimethoxymethyl)-4-(4-methylphenyl)-1H-imidazole—petroleum ether-chloroform (3/1), C27H33Cl3N4O4
  45. Crystal structure of 8-(trifluoromethyl)imidazo[1,2-a]pyridine-3-carbaldehyde, C9H5F3N2O
  46. The crystal structure of N,N-diethyl-4,6-bis(naphthalen-2-yloxy)-1,3,5-triazin-2-amine, C27H24N4O2
  47. Crystal structure of 5-bromo-7-chloro-3,3a-dihydrocyclopenta[b]chromen-1(2H)-one, C12H8BrClO2
  48. Crystal structure of 2-(bis(4-fluorophenyl)methylene)hydrazine-1-carbothioamide, C14H11F2N3S
Sign up now to receive a 20% welcome discount
Institutional Access
How does access work?
Have an idea on how to improve our website?
Please write us.
© 2025 De Gruyter Brill
Downloaded on 17.11.2025 from https://www.degruyterbrill.com/document/doi/10.1515/ncrs-2018-0106/html
Scroll to top button