Zobrazeno 1 - 10
of 195
pro vyhledávání: '"Hamid Latif Siddiqui"'
Publikováno v:
Journal of the Serbian Chemical Society, Vol 74, Iss 12, Pp 1389-1399 (2009)
Five flavonoids, viz. (–)-epicatechin-3-O-b-glucopyranoside (1), 5-hydroxy-3-(4-hydroxylphenyl)pyrano[3,2-g]chromene-4(8H)-one (2), 6-(p-hydroxybenzyl)taxifolin-7-O-b-D-glucoside (tricuspid) (3), quercetin-3-O-a-glucopyranosyl-(1®2)-b-glucopyranos
Externí odkaz:
https://doaj.org/article/8ca164645df8495c8ba638cf27d9daba
Publikováno v:
Molecules, Vol 12, Iss 2, Pp 245-254 (2007)
A series of eight new azomethine derivatives were synthesized by reacting 2-formylphenoxyacetic acid with aromatic amines. The chemical structures of these compounds were confirmed by means of 1H-NMR, 13C-NMR, MS and elemental analysis. The compounds
Externí odkaz:
https://doaj.org/article/5a5f209ce22e48f8986db3d386b791c3
Publikováno v:
Molecules, Vol 11, Iss 2, Pp 206-211 (2006)
Five novel Schiff bases have been prepared from o-formylphenoxyacetic acidand a series of aminothiazoles to form a number of potentially biologically activecompounds. The structures of these Schiff bases have been characterized using IR and 1H-and 13
Externí odkaz:
https://doaj.org/article/de58ad7a95214c9ba8502ee1594f3ce3
Publikováno v:
Acta Crystallographica Section E, Vol 68, Iss 10, Pp o3010-o3010 (2012)
In the title molecule, C15H17N3O4S, the heterocyclic thiazine ring adopts a twist-boat conformation, which differs from that in related compounds, with adjacent S and C atoms displaced by 0.981 (4) and 0.413 (5) Å, respectively, on the same side of
Externí odkaz:
https://doaj.org/article/03f2090403ba404bb1ce51ce9236b388
Publikováno v:
Acta Crystallographica Section E, Vol 68, Iss 9, Pp o2802-o2802 (2012)
The asymmetric unit of the title compound, C15H10ClNO4S, contains two independent conformers wherein the 2-chlorophenyl group in one is rotated by approximately 180° compared to the other molecule. This affects the S—N—C—C(=O) and N—C—C(=O
Externí odkaz:
https://doaj.org/article/cd93947cad424ec1b80fb2cd31114658
Publikováno v:
Acta Crystallographica Section E, Vol 68, Iss 9, Pp o2615-o2616 (2012)
In the title molecule, C16H13N3O2S, the heterocyclic thiazine ring adopts a twist chair conformation with the S atom and an adjacent C atom displaced by 0.946 (5) and 0.405 (6) Å, respectively, on the same side of the mean plane formed by the remain
Externí odkaz:
https://doaj.org/article/7874b5e0ecf64fc586df35c42d8906ed
Publikováno v:
Acta Crystallographica Section E, Vol 68, Iss 9, Pp o2761-o2761 (2012)
In the title molecule, C12H13NO5S, the benzisothiazole ring system is essentially planar (r.m.s. deviation = 0.0169 Å) as is the –C—C(=O)—O—C– sequence of atoms in the vicinity of the acetate group (r.m.s. deviation = 0.0044 Å). The mean
Externí odkaz:
https://doaj.org/article/61933912db994e1aa6518b58b9b72a3b
Publikováno v:
Acta Crystallographica Section E, Vol 68, Iss 8, Pp o2470-o2471 (2012)
In the title molecule, C20H19FN4O3S, the heterocyclic thiazine ring adopts a half-chair conformation with the S atom displaced by 0.668 (4) Å from the mean plane formed by the remaining ring atoms. The mean planes of the benzene and pyrazole rings a
Externí odkaz:
https://doaj.org/article/410b85b521324ef29febc43f79d554a5
Publikováno v:
Acta Crystallographica Section E, Vol 68, Iss 6, Pp o1889-o1890 (2012)
The asymmetric unit of the title compound, C15H10BrNO4S, contains two different conformers in which the benzisothiazole rings are essentially planar, with r.m.s. deviations of 0.012 and 0.017 Å. The mean planes of the benzene rings form dihedral ang
Externí odkaz:
https://doaj.org/article/8af2b65daf3d438b8c60e333ca185b91
Publikováno v:
Acta Crystallographica Section E, Vol 68, Iss 6, Pp o1921-o1921 (2012)
In the title molecule, C17H16N2O4S, the heterocyclic thiazine ring adopts a half-chair conformation, with the S and N atoms displaced by 0.546 (4) and 0.281 (4) Å, respectively, on opposite sides of the mean plane formed by the remaining ring atoms.
Externí odkaz:
https://doaj.org/article/6a5fbbaeb1c64e6995b6bb57b183c596