Startseite Crystal structure of 4-(3,4-dimethyl-phenyl)-2-methyl-5-oxo-1,4,5,6,7,8-hexahydro-quinoline-3-carboxylic acid ethyl ester, C21H25NO3
Artikel Open Access

Crystal structure of 4-(3,4-dimethyl-phenyl)-2-methyl-5-oxo-1,4,5,6,7,8-hexahydro-quinoline-3-carboxylic acid ethyl ester, C21H25NO3

  • Jing Meng , Yifei Dai und Feng Sui EMAIL logo
Veröffentlicht/Copyright: 9. November 2016

Abstract

C21H25NO3, triclinic, P1̅ (no. 2), a = 7.336(4) Å, b = 10.825(4) Å, c = 12.322(3) Å, α = 70.940(18)°, β = 75.965(19)°, γ = 82.483(19)°, V = 895.8(6) Å3, Z = 2, Rgt(F) = 0.0736, wRref(F2) = 0.1827, T = 296 K.

CCDC no.:: 1510407

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 blocks
Size:0.36 × 0.31 × 0.24 mm
Wavelength:Mo Kα radiation (0.71073 Å)
μ:0.8 cm−1
Diffractometer, scan mode:Bruker APEX-II, φ and ω
2θmax, completeness:50°, >97%
N(hkl)measured, N(hkl)unique, Rint:4281, 3069, 0.032
Criterion for Iobs, N(hkl)gt:Iobs > 2 σ(Iobs), 2171
N(param)refined:227
Programs:SHELX [6], Bruker programs [7]
Table 2

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

AtomxyzUiso*/Ueq
N10.5879(4)0.2334(2)0.4715(2)0.0438(7)
H1A0.68730.25200.48700.053*
O1−0.0626(3)0.2777(2)0.5198(2)0.0560(7)
O20.3154(4)0.0647(3)0.2488(3)0.0715(8)
O30.6144(4)0.0031(3)0.2464(3)0.0721(8)
C10.4182(4)0.2797(3)0.5199(3)0.0370(7)
C20.4116(5)0.3297(3)0.6197(3)0.0480(8)
H2A0.52160.37900.60340.058*
H2B0.41420.25650.69040.058*
C30.2379(5)0.4155(4)0.6394(4)0.0614(10)
H3A0.24600.49680.57510.074*
H3B0.22730.43650.71150.074*
C40.0663(5)0.3470(4)0.6475(3)0.0567(10)
H4A0.04830.27340.71900.068*
H4B−0.04350.40700.65250.068*
C50.0814(4)0.2986(3)0.5449(3)0.0420(8)
C60.2639(4)0.2742(3)0.4799(2)0.0354(7)
C70.2830(4)0.2350(3)0.3706(3)0.0378(7)
H7A0.17760.18120.38360.045*
C80.4623(4)0.1521(3)0.3511(3)0.0382(7)
C90.6074(4)0.1570(3)0.3979(3)0.0409(8)
C100.7940(5)0.0841(3)0.3849(3)0.0543(9)
H10A0.80000.03270.33350.081*
H10B0.81070.02740.46050.081*
H10C0.89170.14500.35230.081*
C110.4784(5)0.0658(3)0.2788(3)0.0479(8)
C120.3148(8)−0.0172(5)0.1767(5)0.1016(19)
H12A0.4349−0.01460.12170.122*
H12B0.2974−0.10710.22600.122*
C130.1702(8)0.0261(6)0.1148(5)0.111(2)
H13A0.1731−0.02780.06610.167*
H13B0.18700.11530.06650.167*
H13C0.05110.02060.16940.167*
C140.2667(4)0.3561(3)0.2663(3)0.0380(7)
C150.4053(5)0.4454(3)0.2181(3)0.0428(8)
H15A0.51290.42930.24900.051*
C160.3900(5)0.5588(3)0.1249(3)0.0439(8)
C170.5472(6)0.6518(3)0.0759(3)0.0629(11)
H17A0.51510.72450.01270.094*
H17B0.66110.60690.04730.094*
H17C0.56540.68320.13680.094*
C180.2294(5)0.5837(3)0.0795(3)0.0483(9)
C190.2056(7)0.7040(4)−0.0219(4)0.0735(12)
H19A0.08620.7047−0.04120.110*
H19B0.30480.7031−0.08880.110*
H19C0.21050.7808−0.00020.110*
C200.0910(5)0.4949(4)0.1280(3)0.0523(9)
H20A−0.01740.51130.09790.063*
C210.1076(5)0.3826(3)0.2197(3)0.0467(8)
H21A0.01150.32460.25020.056*

Source of material

The title compound was synthesized according to a reported procedure [5]. A mixture of cyclohexane-1,3-dione (10 mmol), 3,4-dimethyl-benzaldehyde (10 mmol), ammonium acetate (10 mmol) and ethyl acetoacetate (10 mmol) in ethanol (100 mL) was refluxed for 2–3 h and then cooled to room temperature. Evaporation at room temperature yielded colourless crystals of C21H25NO3.

Experimental details

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

Discussion

4-Arylpolyhydroquinoline derivatives are one of the most commonly encountered of pharmacophores for a number of compounds having medicinal significance including anticancer, antiviral, antibacterial, antioxidant, anti-HIV, antihyperglycemic and anti-dyslipidemic activities [1, 2]. Recognizing the considerable importance of these compounds, research focused on the synthesis of new 4-arylpolyhydroquinoline derivatives [3, 4].

In the crystal structure of compound 1, the six-membered ring containing nitrogen is nearly planar (maximum deviation = 0.1765 Å) and the adjacent ketone ring adopts a flattened chair conformation [dihedral angle (N1-C1-C2-C3) = 161.582°]. The heterocycle is almost perpendicular to the benzene ring (dihedral angle = 89.426°) and is almost coplanar to the mean plane of the ketone ring (dihedral angle = 10.555°).

Award Identifier / Grant number: 81274112

Award Identifier / Grant number: 81373986

Award Identifier / Grant number: 81473372

Award Identifier / Grant number: 7152106

Funding statement: This work was supported by grants from the National Natural Science Foundation of China (81274112; 81373986; 81473372) and Beijing Municipal Natural Science Foundation (7152106).

Acknowledgements

This work was supported by grants from the National Natural Science Foundation of China (81274112; 81373986; 81473372) and Beijing Municipal Natural Science Foundation (7152106).

References

1 Ghorbani-Choghamarani, A.; Azadi, G.: Synthesis, characterization, and application of Fe3O4-SA-PPCA as a novel nanomagnetic reusable catalyst for the efficient synthesis of 2,3-dihydroquinazolin-4(1H)-ones and polyhydroquinolines. RSC Adv. 5 (2015) 9752–9758.10.1039/C4RA15315DSuche in Google Scholar

2 Hilgeroth, A.; Heinemann, F. W.: Novel solid-state synthesis of dimeric 4-aryl-1,4-dihydropyridines. J. Heterocyclic Chem. 35 (1998) 359–364.10.1002/jhet.5570350217Suche in Google Scholar

3 Hilgeroth, A.; Wiese, M.; Billich, A.: Synthesis and biological evaluation of the first N-alkyl cage dimeric 4-aryl-1,4-dihydropyridines as novel nonpeptidic HIV-1 protease inhibitors. J. Med. Chem. 42 (1999) 4729–4732.10.1021/jm991115kSuche in Google Scholar

4 Hilgeroth, A.; Billich, A.; Lilie, H.: Synthesis and biological evaluation of first N-alkyl syn dimeric 4-aryl-1,4-dihydropyridines as competitive HIV-1 protease inhibitors. Eur. J. Med. Chem. 36 (2001) 367–374.10.1016/S0223-5234(01)01228-4Suche in Google Scholar

5 Hilgeroth, A.; Langner, A.: Plasma protein binding properties of dimeric 4-aryl-1,4-dihydropyridines as novel non peptidic HIV-1 protease inhibitors. Pharmazie 55 (2000) 542–543.Suche in Google Scholar

6 Sheldrick, G. M.: A short history of SHELX. Acta Crystallogr. A64 (2008) 112–122.10.1107/S0108767307043930Suche in Google Scholar PubMed

7 Bruker. APEX2, SAINT and SADABS. Bruker AXS Inc., Madison, WI, USA, (2009).Suche in Google Scholar

Received: 2016-5-30
Accepted: 2016-10-28
Published Online: 2016-11-9
Published in Print: 2017-1-1

©2016 Jing Meng et al., published by De Gruyter.

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Artikel in diesem Heft

  1. Cover and Frontmatter
  2. Editorial
  3. Twenty years of crystal structure publication and the road ahead
  4. Crystal Structures
  5. Crystal structure of poly-[triaqua-(μ4-5′-carboxy-[1,1′-biphenyl]-2,3,3′-tricarboxylate-κ6O1,O2:O3,O4:O5:O6)praseodymium(III), C16H13O11Pr
  6. Crystal structure of (R)-1-(2,3-dihydro-1H-pyrrolizin-5-yl)-2,3-dihydroxypropan-1-one, C10H13NO3
  7. Crystal structure of (E)-4-nitro-2-((2-phenoxyphenylimino)methyl)phenol, C19H14N2O4
  8. Crystal structure of 3,3′-di(furan-2-yl)-5,5′-bi-1,2,4-triazine
  9. Crystal structure of 11-(p-coumaroyloxy)-tremetone, C22H20O5
  10. The crystal structure of 1,3-bis(2,6-diiso-propylphenyl)imidazol-2-ylidene)-dibromido-(1-methyl-1H-imidazole-κ1N)palladium(II) – ethyl acetate – water (1/1/1), C31H42Br2N4Pd
  11. Crystal structure of 2-((3-(5-methyl-1-phenyl-1H-1,2,3-triazol-4-yl)-1-phenyl-1H-pyrazol-4-yl)methylene)-1H-indene-1,3(2H)-dione, C28H19N5O2
  12. Crystal structure of 2-(5-(4-fluorophenyl)-3-p-tolyl-4,5-dihydro-1H-pyrazol-1-yl)-4-(5-methyl-1-p-tolyl-1H-1,2,3-triazol-4-yl)thiazole, C29H25FN6S
  13. Crystal structure of poly-[aqua-(μ7-benzene-1,3,5-tricarboxylato)-(μ3-1,2,4-triazol-1-ido)dicobalt(II)], C11H7Co2N3O7
  14. Crystal constructure of 16(S)-methyl-6α-carboxy-1, 15-dioxo-6, 7-seco-ent-kaur-2-en-7, 20-olide, C20H24O6
  15. Crystal structure of 1-(benzo[d]thiazol-2-yl)-3-phenylthiourea, C14H11N3S2
  16. Crystal structure of 3-(2-bromophenyl)-1,1-dimethylthiourea, C9H11BrN2S
  17. Crystal structure of 1-(adamantan-1-yl)-3-(3-chlorophenyl)thiourea, C17H21ClN2S
  18. Crystal structure of 3-(adamantan-1-yl)-1-(4-bromophenyl)urea, C17H21BrN2O
  19. Crystal structure of (Z)-Ethyl 2-cyano-2-(3-phenylthiazolidin-2-ylidene) acetate, C14H14N2O2S
  20. Crystal structure of methyl 2b-ethyl-1a,2a,2b,2b1,3,5,10,11-octahydro-1H-oxireno[2′,3′:6,7]indolizino[8,1-cd]carbazole-4-carboxylate, C21H24N2O3
  21. Crystal structure of 2-amino-5-oxo-4-(3,4,5-trimethoxy-phenyl)-4,5,6,7-tetrahydro-cyclopenta[b]pyran-3-carbonitrile, C18H18N2O5
  22. Crystal structure of 1,2,3-trimethyl-2,3-dihydro-1H-perimidine, C14H16N2
  23. Crystal structure of bis(2,6-dihydroxymethyl)pyridine-κ3N,O,O′)-bis(μ2-6-chloropyridin-2-olato-κ3N,O:O)-bis(6-chloropyridin-2-olato-κO)-bis(nitrato-κ2O,O′)digadolinium(III), C34H30Cl4Gd2N8O14
  24. Crystal structure of 8-isopropyl-8-aza-bicyclo[3.2.1]octan-3-yl 3-hydroxy-2-phenylpropanoate, C19H27NO3
  25. Crystal structure of 1-methyl-3-[((naphthalen-2-ylsulfonyl)oxy)imino]indolin-2-one, C19H14N2O4S
  26. Crystal structure (7,8-bis(diisopropylphosphino)-7,8-dicarba-nido-undecaborane-κ2P,P′)-(benzoato-κ2O,O′)nickel(II), C21H42B9NiO2P2
  27. Crystal structure of methyl-2-methyl-4-(2-oxo-2-phenylethyl)-5-phenyl-1H-pyrrole-3-carboxylate, C21H19NO3
  28. Crystal structure of 2-[(2-oxo-thiazolidine-3-carbonyl)sulfamoyl]-methy-benzoic acid methyl ester, C13H14N2O6S2
  29. Crystal structure of N′-(2-phenylacetyl)thiophene-2-carbohydrazide monohydrate, C13H14N2O3S
  30. Crystal structure of 1,1′-(hexane-1,6-diyl)bis(3-methyl-1H-imidazol-3-ium) bis(hexafluoro phosphate), C14H24F12N4P2
  31. Crystal structure of di-μ-chlorido-bis[1,2-bis(dicyclohexylphosphino)-1,2-dicarba-closo-dodecaborane-κ2P,P′]zinc(II), C52H108B20Cl2P4Zn2
  32. Crystal structure of dibromido-bis[μ-1-[(2-methyl-1H-benzoimidazol-1-yl)methyl]-1H-benzotriazole-κN]mercury(II), C30H26Br2HgN10
  33. Crystal structure of bis(μ-nitrato-κ2O:O)-bis[1,2-bis(diphenylphosphino)-1,2-dicarba-closo-dodecaborane-κ2P,P′]disilver(I) dicloromethane monosolvate, C54H64B20Cl4O6P4Ag2
  34. Crystal structure of dinuclear dichloridobis(dimethylformamide-kO)bis[μ2-3-(2-oxyphenyl)-5-(pyrazin-2-yl)-1,2,4-triazol-1ido-κ4-O,N:N′,N′′(2)]diiron(III) dimethylformamide (1/1), C36H42Cl2Fe2N14O6
  35. Crystal structure of diaqua-dinitrato-κO-bis(4-(1H-pyrazol-3-yl)pyridine-κN)manganese(II), C16H18MnN8O8
  36. Crystal structure of (Z)-6-methoxy-2-(2,2,2-trifluoro-1-hydroxyethylidene)-2,3-dihydro-1H-inden-1-one, C12H6F6O3
  37. Crystal Structure of 4-(2-chloroacetamido)pyridinium chloride monohydrate, C7H10Cl2N2O2
  38. Crystal structure of 2-amino-4-(4-chloro-phenyl)-5-oxo-5,6,7,8-tetrahydro-4H-chromene-3-carbonitrile, C16H13ClN2O2
  39. Crystal structure of (E)-1-(2-(thiophen-2-ylmethylene)hydrazinyl)phthalazine hydrochloride–ethanol (1/1), C15H17ClN4OS
  40. Crystal structure of N,N-diethyl-5-bromo-3,4-dihydro-2,4-dioxopyrimidine-1(2H)-carboxamide, C9H12BrN3O3
  41. Crystal structure of 3-(2-(4-chlorophenyl)-3-hydroxy-3,3-diphenylpropyl)-1,1-dimethylurea, C24H25ClN2O2
  42. Crystal structure of 3-(4-chlorophenyl)-1,1-dimethylthiourea, C9H11ClN2S
  43. Crystal structure of 2-amino-4-(4-bromo-phenyl)-7-methyl-5-oxo-4H,5H-pyrano[4,3-b]pyran-3-carbonitrile, C16H11BrN2O3
  44. Crystal structure of 4-(3,4-dimethyl-phenyl)-2-methyl-5-oxo-1,4,5,6,7,8-hexahydro-quinoline-3-carboxylic acid ethyl ester, C21H25NO3
  45. Crystal structure of (E)-2-({4-hydroxy-5-methoxy-3-[(4-methyl-1-piperazinyl)methyl]phenyl} methylidene)-1-indanone, C23H26N2O3
  46. Crystal structure of tripropylammonium 2′-carboxy-[1,1′-biphenyl]-2-carboxylate – [1,1′-biphenyl]-2,2′-dicarboxylic acid (2/1), C60H72N2O12
  47. Crystal structure of catena-poly-{aqua-[μ2-1,2-bis((1H-imidazol-1-yl)methyl)benzene-κ2N:N′]-[μ2-4,4′-(dimethylsilanediyl)dibenzato-κ3O,O′:O′]nickel(II)}, C30H30N4NiO5Si
  48. The crystal structure of 1-(4-bromophenyl)-2-(4-(4-fluorophenyl)piperazin-1-yl)ethanol, C18H20BrFN2O1
  49. Crystal structure of trimethylammonium 4-((4-carboxyphenyl)sulfonyl)benzoate, C17H19NO6S
  50. Crystal structure of syn-2,4-di-o-tolylpentane-2,4-diol, C19H24O2
  51. Crystal structure of 2-[3,5-bis(trifluoromethyl)benzylsulfanyl]-5-(5-bromothiophen-2-yl)-1,3,4-oxadiazole, C15H7BrF6N2OS2
  52. Crystal structure of (E)-3-((naphthalen-1-ylimino)methyl)-4-nitrophenol, C17H12N2O3
  53. Crystal structure of 2-dichloromethyl-2-p-nitrophenyl-1,3-dioxolane, C10H9Cl2NO4
  54. Crystal structure of (1,4,8,11-tetraazacyclotetradecane)palladium(II) tetracyanopalladate(II), C14H24N8Pd2
  55. Crystal structure of 2-(4-oxo-2-thioxothiazolidin-3-yl)acetic acid monohydrate, C5H7NO4S2
  56. Crystal structure of a P4-bridged (η5-pentamethyl-cyclopentadienyl)(η5-adamantylcyclopentadienyl) titanium(III)complex, C50H66P4Ti2
  57. Crystal structure of cis-bis(2,2′-bipyrimidine-κ2N,N′)bis(thiocyanato-κN)nickel(II), C18H12N10NiS2
  58. Crystal structure of cis-bis(2,2′-bipyridine-κ2N,N′)dibromidomanganese(II), C20H16Br2MnN4
  59. Crystal structure of cis-bis(2,2′-bipyridine-κ2N,N′)bis(thiocyanato-κN)nickel(II), C22H16N6NiS2
  60. Crystal structure of trans-dibromido(1,4,8,11-tetraazacyclotetradecane)nickel(II), C10H24Br2N4Ni
  61. Crystal structure of cis-tetrabromidobis(pyridine-κN)platinum(IV), C10H10Br4N2Pt
  62. Crystal structure of (E)-5-((4-chlorophenyl)diazenyl)-2-(5-(4-fluorophenyl)-3-(thiophen-2-yl)-4,5-dihydro-1H-pyrazol-1-yl)-4-methylthiazole, C23H17ClFN5S2
  63. The crystal structure of 3-((1R,2S)-1-methylpyrrolidin-1-ium-2-yl)pyridin-1-ium tetrachloridocobaltate(II) monohydrate, C10H18Cl4CoN2O
Heruntergeladen am 5.10.2025 von https://www.degruyterbrill.com/document/doi/10.1515/ncrs-2016-0173/html
Button zum nach oben scrollen