نتایج جستجو برای: 4 methoxy 13 benzenediolylhydrazones
تعداد نتایج: 1529662 فیلتر نتایج به سال:
Chromatographic separation of the MeOH extract from the aerial parts of Saussurea pulchella led to the isolation of seven terpenes (1-4, 11-13), and eight phenolics (5-10, 14-15). Their structures were determined by spectroscopic means to be (3S)-3-O-(3',4'-diangeloyl-beta-D-glucopyranosyloxy)-3,7-trimethylocta-1,6-diene (1), 7delta-methoxy- 4(14)- oppositen-1beta-ol (2) 4(15)- eudesmene-1beta,...
The title compound, C(16)H(13)FO(2), was prepared from 4-methoxy-hypnone and 4-fluoro-benzophenone by Claisen-Schmidt condensation. All the bond lengths and bond angles are in normal ranges. The dihedral angle formed by the two benzene rings is 33.49 (2)°. The crystal packing is stabilized by inter-molecular C-H⋯O hydrogen-bonding inter-actions.
Esters of 2-hydroxy-4-methoxy-6-n-pentylbenzoic acid (2-8) (methyl, ethyl, butyl, pentyl, isopropyl, sec-butyl and benzyl), olivetol (9), methyl, ethyl, butyl perlatolates (10-12), 2,4-dihydroxy-6-n-pentylbenzoic acid (15), and methyl and ethyl esters of (15) were prepared through structural modifications of perlatolic acid (1) with the aim to detect new antifungal and antibacterial substances ...
The title compound, C(16)H(13)NO(4), was prepared from 2-nitrylhypnone [systematic name: 1-(2-nitrophenyl)ethanone] and 4-methoxy-benzophenone by a Claisen-Schmidt condensation. The dihedral angle formed by the two benzene rings is 80.73 (2). The crystal packing is stabilized by inter-molecular C-H⋯O hydrogen bonds.
Jennifer Jorgensen, MD, Nisa Kubiliun, MD, Joanna K. Law, MD, Mohammad A. Al-Haddad, MD, FASGE, Juliane Bingener-Casey, MD, PhD, Jennifer A. Christie, MD, Raquel E. Davila, MD, FASGE, Richard S. Kwon, MD, Keith L. Obstein, MD, MPH, Waqar A. Qureshi, MD, FASGE, Robert E. Sedlack, MD, MHPE, Mihir S. Wagh, MD, FASGE, Daniel Zanchetti, MD, Walter J. Coyle, MD, FASGE, previous Committee Chair, Jonat...
In contrast to all previous results with many derivatives of 4-dimethylaminoazobenzene, the ingestion by the rat of 3-methoxy-4-aminoazobenzene or its N-monomethyl or N,N-dimethyl derivatives was found to induce high incidences of squamouscell carcinomas of the ear duct. $-Methoxy-4-aminoazobenzene also induced low incidences of adenocarcinomas in the small intestine and mammary gland. In addit...
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