Synthesis and Mixed Lineage Kinase Activity of Pyrrolocarbazole and Isoindolone Analogs of (+)K-252a
摘要:
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.
Method for Aerobic Oxidative Coupling of Thiophenes with a Ligand-Supported Palladium Catalyst
申请人:Wisconsin Alumni Research Foundation
公开号:US20190210993A1
公开(公告)日:2019-07-11
An oxidative homocoupling method of synthesizing certain 2,2′-bithiophenes from thiophenes using oxygen as the terminal oxidant is disclosed. In non-limiting examples, the method uses oxygen along with a catalytic system that includes palladium, an assistive ligand, and a non-palladium metal additive to catalyze one of the following reactions:
Associated catalytic systems and compositions are also disclosed.
FUSED ISOINDOLONES AS INHIBITORS OF PROTEIN KINASE C
申请人:CEPHALON, INC.
公开号:EP0871612A1
公开(公告)日:1998-10-21
US5808060A
申请人:——
公开号:US5808060A
公开(公告)日:1998-09-15
[EN] FUSED ISOINDOLONES AS INHIBITORS OF PROTEIN KINASE C<br/>[FR] ISO-INDOLONES CONDENSEES UTILISEES COMME INHIBITEURS DE LA PROTEINE KINASE C
申请人:——
公开号:WO1997021677A1
公开(公告)日:1997-06-19
[EN] Disclosed are biologically active, non-indole-containing compounds referred to as fused isoindolones, which are represented by general formula (I). The fused indolones can be obtained by complete chemical synthesis. Methods for making and using the fused isoindolones are disclosed. [FR] L'invention se rapporte à des composés biologiquement actifs sans indole et appelés iso-indolones condensées, ces composés étant représentés par la formule générale (I). Les indolones condensées peuvent être obtenues par synthèse chimique totale. L'invention se rapporte également à des procédés de fabrication et d'utilisation d'iso-indolones condensées.
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.