Zobrazeno 1 - 10
of 246
pro vyhledávání: '"S. Madan Kumar"'
Autor:
Banylla Felicity Dkhar Gatphoh, Natasha Naval Aggarwal, S. Madan Kumar, M. Vijay Kumar, B. C. Revanasiddappa
Publikováno v:
Bangladesh Journal of Pharmacology, Vol 17, Iss 1 (2022)
The compounds 1,3,4-oxadiazole derivatives (1-8) were synthesized by the cyclization of 4-hydroxy benzhydrazide (1) with various substituted aroma-tic aldehydes (2) using FeCl3 as catalyst and methanol as a solvent medium. The structures of the newly
Externí odkaz:
https://doaj.org/article/00f41c0bf0db4afd8452b308c9b5461e
Publikováno v:
Acta Crystallographica Section E: Crystallographic Communications, Vol 74, Iss 10, Pp 1455-1459 (2018)
The asymmetric unit of the title compound, C17H16N4O6, contains two independent molecules (A and B). The two benzene rings are twisted by an angle of 79.14 (7)° in molecule A, whereas, in molecule B, they are inclined by 19.02 (14)°. The conformati
Externí odkaz:
https://doaj.org/article/e6da21462ca647289906194f824ddde7
Autor:
Mohammed A. E. Shaibah, Belakavadi K. Sagar, Hemmige S. Yathirajan, S. Madan Kumar, Christopher Glidewell
Publikováno v:
Acta Crystallographica Section E: Crystallographic Communications, Vol 73, Iss 10, Pp 1513-1516 (2017)
Ebastine, 4-(benzhydryloxy)-1-[4-(4-tert-butylphenyl)-4-oxobutyl]piperidine, reacts with 3,5-dinitrobenzoic acid in methanol solution to give the title 1:1 salt, ebastinium 3,5-dinitrobenzoate, C32H40NO2+·C7H3N2O6−. In the cation, the disubstitute
Externí odkaz:
https://doaj.org/article/f6101dd49ab24838b0f5bc7cb7c520f4
Autor:
Mohammed A. E. Shaibah, Hemmige S. Yathirajan, S. Madan Kumar, Kullaiah Byrappa, Christopher Glidewell
Publikováno v:
Acta Crystallographica Section E: Crystallographic Communications, Vol 73, Iss 10, Pp 1488-1492 (2017)
The N,N-dimethylethylamminium unit in N,N-dimethyl-[2-(2,2-diphenyl)-2-prop-2-ynyloxyacetoxy]ethylamine, C21H23NO3 (I), is disordered over two sets of atomic sites having occupancies of 0.880 (3) and 0. 120 (3), but there are no direction-specific in
Externí odkaz:
https://doaj.org/article/606977a97d554083be7634d024b870f5
Autor:
S. Madan Kumar
Publikováno v:
Heliyon, Vol 5, Iss 2, Pp e01209- (2019)
The tetramorphth crystals of 4,4–dimethylbenzophenone (D) were obtained using slow-evaporation crystallization method and the structure is elucidated using single crystal X-ray diffraction technique. D crystallizes in the orthorhombic crystal syste
Externí odkaz:
https://doaj.org/article/da3fdcfc1291477daa54ba386cdaa6bb
Autor:
N. K. Manjunath, A. A. Nabil Najib, P. Nagendra, B. P Siddaraju, M. T. Swamy, K. Byrappa, S. Madan Kumar
Publikováno v:
IUCrData, Vol 2, Iss 4, p x170547 (2017)
In the title compound, C14H12ClNO2, the dihedral angle between the aromatic rings is 6.09 (17)° and the Car—C—C—Car torsion angle is −179.4 (3)°. The nitro group is close to coplanar with its attached ring [dihedral angle = 7.9 (2)°] and t
Externí odkaz:
https://doaj.org/article/f50d7be4751b415d8b21c6694327d8c2
Autor:
Maryam Gilandoust, K. B. Harsha, S. Madan Kumar, K. S. Rakesh, N. K. Lokanath, K. Byrappa, K. S. Rangappa
Publikováno v:
IUCrData, Vol 1, Iss 12, p x161944 (2016)
In the title compound, C5H3BrN4, the almost planar triazolopyrimidine ring system (r.m.s. deviation = 0.014 Å) carries a bromo substituent at the 5-position. In the crystal, C—H...N hydrogen bonds form inversion dimers enclosing R22(8) rings and a
Externí odkaz:
https://doaj.org/article/33171c32efb64c69b934858790597fe4
Autor:
Maryam Gilandoust, K. B. Harsha, S. Madan Kumar, K. S. Rakesh, N. K. Lokanath, K. Byrappa, K. S. Rangappa
Publikováno v:
IUCrData, Vol 1, Iss 11, p x161770 (2016)
In the title compound, C13H11FN4O, the dihedral angle between the triazolopyrimidine ring system and fluorophenyl ring is 39.16 (12)°. In the crystal, C—H...N hydrogen bonds link the molecules resulting in R22(8) ring motifs and C(8) chain motifs.
Externí odkaz:
https://doaj.org/article/b3d886fe95864ee79fdffbfd49604f48
Publikováno v:
IUCrData, Vol 1, Iss 10, p x161594 (2016)
In the title compound, C14H14O3, the dihedral angle between the naphthyl ring system and the side chain is 9.00 (14)°, and the ethoxy chain adopts an extended conformation [C—O—C—C = 176.0 (3)°]. There are no directional interactions in the c
Externí odkaz:
https://doaj.org/article/7828a604230646d490915ce4e659c2af
Publikováno v:
IUCrData, Vol 1, Iss 7, p x161068 (2016)
In the title compound, C23H19ClN2O2, the dihedral angles between the imidazole ring system and the chlorobenzene and phenyl rings are 48.05 (14) and 82.53 (15)°, respectively. In the crystal, inversion dimers linked by pairs of C—H...O hydrogen bo
Externí odkaz:
https://doaj.org/article/9affa39701d74632a4236a04c029fcfb