Synthesis of benzo[b]thieno- and benzo[b]furano-[2,3-a]pyrrolo[3,4-c]carbazole-5-, -7- and -5,7-dione
作者:Robert L. Hudkins、Neil W. Johnson
DOI:10.1002/jhet.5570380306
日期:2001.5
Benzo[b]thieno[2,3-a]pyrrolo[3,4-c]carbazoles and benzo[b]furano[2,3-a]pyrrolo[3,4-c]carbazoles were prepared from 2-(2-benzo[b]thieno)- (8) and 2-(2-benzo[b]furano)-3-[3-(2,5-dioxo-lH-pyrrolidinyl)]indole (9) by a palladium(II)acetate/tetrachloro-1,4-benzoquinone oxidative A-E ring closure.
USE OF FUSED PYRROLOCARBAZOLES FOR PREVENTING/TREATING DAMAGE TO SENSORY HAIR CELLS AND COCHLEAR NEURONS
申请人:CEPHALON, INC.
公开号:EP1126855B1
公开(公告)日:2007-05-09
US7789610B2
申请人:——
公开号:US7789610B2
公开(公告)日:2010-09-07
Synthesis and Mixed Lineage Kinase Activity of Pyrrolocarbazole and Isoindolone Analogs of (+)K-252a
作者:Robert L. Hudkins、Neil W. Johnson、Thelma S. Angeles、George W. Gessner、John P. Mallamo
DOI:10.1021/jm051074u
日期:2007.2.8
Structural modification of the indolecarbazole natural product (+)K-252a identified structural requirements for MLK activity and a novel series of potent fused pyrrolocarbazole MLK1/3 inhibitors. The SAR revealed that the lactam regiochemistry, the shape of the heterocycle, and aryl rings B and F are important to MLK activity. Heteroatom and alkyl replacement of the N-12 and/or N-13 indole nitrogen atoms identified the nonplanar dihydronaphthyl[3,4-a]pyrrolo[3,4-c]carbazole-7-one (8) and corresponding 5,7-dione (7) as potent cell-permeable MLK1/3 family-selective leads with in vitro activity comparable to that of (+)K-252a and determined them to be 2- to 3-fold more potent than the aglycone natural product K-252c.