A highly regiospecific synthesis of a series of indenoindoles is reported, together with X-ray studies and their activity against human prostate cancer cells PC-3 and LNCaP in vitro. The most effective compound 7,7-dimethyl-5-[(3,4-dichlorophenyl)]-(4bRS,9bRS)-dihydroxy-4b,5,6,7,8,9bhexahydro-indeno[1,2-b]indole-9,10-dione 7q reduced the viability in both cell lines in a time and dose-dependent manner
NMR of Enaminones Part 3—1H,13C and17O NMR Spectroscopic Studies of Acyclic and CyclicN-Aryl Enaminones: Substituent Effects and Intramolecular Hydrogen Bonding
17O, 13C and 1H NMR spectra for para‐ and meta‐substituted 4‐arylaminopent‐3‐en‐2‐ones (acyclic enaminones, 1 and 2) and 3‐arylaminocyclohex‐2‐en‐1‐ones (cyclic enaminones, 3 and 4) are reported. The 17O, 13C and 1H shift values of these enaminones correlate well with σm0 and σp‐ constants in the correlations for meta and para derivatives, and with pKa values of the corresponding anilines. Dual substituent
Synthesis of 1,2-Diaryl-1<i>H</i>-indol-4-ols and 1,2-Diaryl-7-ethoxy-1,5,6,7-tetrahydroindol-4-ones from Arylglyoxals and Enamines through Domino Reactions
作者:Subhendu Maity、Sudipta Pathak、Animesh Pramanik
DOI:10.1002/ejoc.201201616
日期:2013.4
A series of 1,2-diaryl- and 1-alkyl-2-aryl-1H-indol-4-ols and 1,2-diaryl-7-ethoxy-1,5,6,7-tetrahydroindol-4-ones have been prepared by the dominoreactions of arylglyoxals and enamines at reflux in non-nucleophilic and nucleophilic solvents such as acetonitrile and ethanol, respectively. The transformation occurs by annulation followed by aromatization without the use of any metal or catalyst.
Ophthalmic Compositions for Treating Ocular Hypertension
申请人:Gao Ying-Duo
公开号:US20080097108A1
公开(公告)日:2008-04-24
This invention relates to potent potassium channel blocker compounds of Formula (I) or a formulation thereof for the treatment of glaucoma and other conditions which leads to elevated intraoccular pressure in the eye of a patient. This invention also relates to the use of such compounds to provide a neuroprotective effect to the eye of mammalian species, particularly humans.
I2/DMSO-mediated substrate selective oxidation of tetrahydro indole-2,4-dione towards 4-hydroxy isatins and 5,6-dihydro-1H-indole-2,4-dione derivatives
indole-2,4-diones from readily available β-enaminones and glyoxal and subsequent I2/DMSO-mediated oxidation/aromatization of tetrahydro indole-2,4-dione to produce 4-hydroxyisatin derivatives. The key aspect of this protocol includes the dual catalytic activity of molecular iodine in the presence of DMSO. Mechanistic study suggested that this reaction is substrate selective as corresponding aromatization