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(E)-6-(Furan-2-yl-methyl-idene)-6,7,8,9-tetra-hydro-pyrido[2,1-b]quinazoline-11-thione.
Tojiboev A, Nasrullaev A, Turgunov K, Elmuradov B, Tashkhodjaev B. Tojiboev A, et al. IUCrdata. 2020 Mar 13;5(Pt 3):0. doi: 10.1107/S2414314620003569. eCollection 2020 Mar. IUCrdata. 2020. PMID: 36339479 Free PMC article.
A quinazolinthione, C(17)H(14)N(2)OS, was synthesized by the condensation reaction of 6,7,8,9-tetra-hydro-11H-pyrido[2,1-b]quinazolin-11-thione with furfural. The mol-ecule crystallizes in the monoclinic system (Cc space group) and has an E configuration with respect to th …
A quinazolinthione, C(17)H(14)N(2)OS, was synthesized by the condensation reaction of 6,7,8,9-tetra-hydro-11H-pyrido[2,1-b]quinazolin …
2,3-Dihydro-pyrrolo-[2,1-b]quinazoline-9(1H)-thione.
Nasrullayev AO, Elmuradov BZh, Turgunov KK, Tashkhodjaev B, Shakhidoyatov KM. Nasrullayev AO, et al. Acta Crystallogr Sect E Struct Rep Online. 2012 Jun 1;68(Pt 6):o1746. doi: 10.1107/S1600536812021228. Epub 2012 May 16. Acta Crystallogr Sect E Struct Rep Online. 2012. PMID: 22719531 Free PMC article.
(E)-3-[4-(Dimethyl-amino)-benzyl-idene]-2,3-di-hydro-1H,9H-pyrrolo-[2,1-b]quinazolin-9-one.
Elmuradov BZh, Okmanov RY, Abdurazakov ASh, Tashkhodjaev B, Shakhidoyatov KM. Elmuradov BZh, et al. Acta Crystallogr Sect E Struct Rep Online. 2010 Jun 5;66(Pt 7):o1592. doi: 10.1107/S1600536810020878. Acta Crystallogr Sect E Struct Rep Online. 2010. PMID: 21587830 Free PMC article.
The title compound, C(20)H(19)N(3)O, was obtained by condensation of 2,3-dihydro-1H,9H-pyrrolo-[2,1-b]quinazolin-9-one (alkaloid de-oxy-vasicinone, isolated from Peganum Harmala) with 4-(dimethyl-amino)-benzaldehyde in the presence of sodium methoxide. The 2,3-dihydro-1H,9 …
The title compound, C(20)H(19)N(3)O, was obtained by condensation of 2,3-dihydro-1H,9H-pyrrolo-[2,1-b]quinazolin-9-one (alkaloid de-o …
Withanolides from Physalis angulata L.
Okmanov RY, Makhmudova MM, Bobaev ID, Tashkhodjaev B. Okmanov RY, et al. Acta Crystallogr E Crystallogr Commun. 2021 Jul 16;77(Pt 8):804-808. doi: 10.1107/S205698902100709X. eCollection 2021 Aug 1. Acta Crystallogr E Crystallogr Commun. 2021. PMID: 34422305 Free PMC article.
Two products were isolated from the chromatographic separation extract. Compound I corresponds to physangulide B chloro-form monosolvate, C(28)H(38)O(7).CHCl(3), while compound II is 14alpha-hy-droxy-ixocarpanolide, C(28)H(40)O(7). In the two mol-ecular structures, the con …
Two products were isolated from the chromatographic separation extract. Compound I corresponds to physangulide B chloro-form monosolv …
6,7,8,9,10,11-Hexahydro-13H-azocino[2,1-b]quinazolin-13-one.
Okmanov RY, Samarov ZU, Turgunov KK, Tashkhodjaev B, Shakhidoyatov KM. Okmanov RY, et al. Acta Crystallogr Sect E Struct Rep Online. 2009 Jul 4;65(Pt 8):o1776. doi: 10.1107/S160053680902460X. Acta Crystallogr Sect E Struct Rep Online. 2009. PMID: 21583484 Free PMC article.
3-Methyl-2-(3,3,3-tri-chloro-2-hy-droxy-prop-yl)quinazolin-4(3H)-one.
Utayeva FR, Okmanov RY, Mukarramov NI, Shakhidoyatov KM, Tashkhodjaev B. Utayeva FR, et al. Acta Crystallogr Sect E Struct Rep Online. 2013 Jun 15;69(Pt 7):o1094. doi: 10.1107/S1600536813016073. eCollection 2013. Acta Crystallogr Sect E Struct Rep Online. 2013. PMID: 24046656 Free PMC article.
In the crystal, O-HO hydrogen bonds link the mol-ecules into an infinite chain running parallel to the b axis....
In the crystal, O-HO hydrogen bonds link the mol-ecules into an infinite chain running parallel to the b axis....
11-(2-Oxopyrrolidin-1-ylmeth-yl)-1,2,3,4,5,6,11,11a-octa-hydro-pyrido[2,1-b]quinazolin-6-one dihydrate.
Samarov ZU, Okmanov RY, Turgunov KK, Tashkhodjaev B, Shakhidoyatov KM. Samarov ZU, et al. Acta Crystallogr Sect E Struct Rep Online. 2010 Mar 20;66(Pt 4):o890. doi: 10.1107/S1600536810009955. Acta Crystallogr Sect E Struct Rep Online. 2010. PMID: 21580707 Free PMC article.
In the crystal structure of the title compound, C(17)H(21)N(3)O(2).2H(2)O, water mol-ecules are mutually O-HO hydrogen bonded and form infinite chains propagating along the b axis. Neighboring chains are linked by the quinazoline mol-ecules by means of O-HO=C hydrogen bond …
In the crystal structure of the title compound, C(17)H(21)N(3)O(2).2H(2)O, water mol-ecules are mutually O-HO hydrogen bonded and form infin …
(E)-3-Propoxymethyl-idene-2,3-dihydro-1H-pyrrolo[2,1-b]quinazolin-9-one monohydrate.
Elmuradov BZh, Turgunov K, Tashkhodjaev B, Shakhidoyatov KM. Elmuradov BZh, et al. Acta Crystallogr Sect E Struct Rep Online. 2010 Apr 30;66(Pt 5):o1238. doi: 10.1107/S1600536810014303. Acta Crystallogr Sect E Struct Rep Online. 2010. PMID: 21579258 Free PMC article.
The title compound, C(15)H(16)N(2)O(2).H(2)O, was synthesized via the alkyl-ation of 3-hydroxy-methyl-idene-2,3-dihydro-1H-pyrrolo[2,1-b]quinazolin-9-one with n-propyl iodide in the presence of sodium hydroxide. ...
The title compound, C(15)H(16)N(2)O(2).H(2)O, was synthesized via the alkyl-ation of 3-hydroxy-methyl-idene-2,3-dihydro-1H-pyrrolo[2,1-b …
16 results