Hydroxyl-containing compounds are highly value-added organic molecules, and the establishment of novel methodologies for their elaboration is a long-standing challenge in organic synthesis. Here the first oxone-mediated direct arylhydroxylation of activated alkenes was developed for the synthesis of valuable hydroxyl-containing oxindoles and 3,4-dihydroquinolin-2-ones. The products were controlled
Mass spectral fragmentation pattern of 3-(2′-hydroxyethyl)quinolin-2(1H)-one and its derivatives
作者:S. P. Rajendran、P. Shanmugam
DOI:10.1002/oms.1210270213
日期:1992.2
AbstractFragmentation patterns resulting from electron impact ionization of 3‐(2′‐hydroxyethyl)quinolin‐2(1H)‐one, three of its monosubstituted derivatives and four of its disubstituted derivatives were studied. The molecular ion of quinolinone‐2‐etbanol undergoes initial fragmentation with the loss of OH·, H2O, CO, ·CHO, CH2O, CH2OH·, CH2CHOH and HCNO species. The [M – CHO]+ ion is tentatively suggested to have been formed by the expulsion of H· from the [M – CO]+· ion and the [M ‐ CHO]+ peak may be considered as diagnostic of a 2‐quinolone‐3‐ethanol.
Rajendran, S.P.; Shanmugam, P., Journal of the Indian Chemical Society, 1993, vol. 70, # 10, p. 815 - 818
作者:Rajendran, S.P.、Shanmugam, P.
DOI:——
日期:——
Synthesis and structure–activity relationships of novel poly(ADP-ribose) polymerase-1 inhibitors
作者:Ming Tao、Chung Ho Park、Ron Bihovsky、Gregory J. Wells、Jean Husten、Mark A. Ator、Robert L. Hudkins
DOI:10.1016/j.bmcl.2005.10.099
日期:2006.2
A series of novel pyrrolocarbazoles was synthesized as potential PARP-1 inhibitors. Pyrrolocarbazole 1 was identified as a potent PARP-I inhibitor (IC50 = 36 nM) from our internal database. Synthesis of analogs around this template with the aid of modeling studies led to the identification of the truncated imide 14. Compound 14 (IC50 = 40 nM), with deleted B-ring, was found to be an equipotent PARP-1 inhibitor. (c) 2005 Elsevier Ltd. All rights reserved.
Rajendran, S. P.; Shanmugam, P., Journal of the Indian Chemical Society, 1994, vol. 71, # 5, p. 285 - 288