Suzuki cross-coupling reactions using reverse-phase glass beads in aqueous media
作者:Kokovi M. Lawson Daku、Roger F. Newton、Simon P. Pearce、Julia Vile、Jonathan M.J. Williams
DOI:10.1016/s0040-4039(03)01128-6
日期:2003.6
Reverse-phase glass beads have been employed in Suzuki reactions to provide, in aqueous media, a route to diverse polar substrates in good yield and with low levels of palladium leaching. (C) 2003 Elsevier Science Ltd. All rights reserved.
Verfahren zur Herstellung von Benzazolylverbindungen
申请人:CIBA-GEIGY AG
公开号:EP0031296B1
公开(公告)日:1985-08-07
Synthesis of New Cyano-Substituted bis-Benzothiazolyl Arylfurans and Arylthiophenes
The new compounds 2-[4-(6-cyanobenzothiazol-2-yl)phenyl]-5-(6-cyano-benzothiazol-2-yl)furan (6a) and 2-[4-(6-Cyanobenzothiazol-2-yl)phenyl]-5-(6-cyano-benzothiazol-2-yl)thiophene (6b) were synthesized by multi-step reactions from the corresponding 2-furan and 2-thiophene carboxaldehydes (route A), as well as from 2-furan and 2- thiophene carboxylic acids (route B). Route B involves one less step than route A, but the overall yields of the reactions are considerably lower.
Synthesis and biological evaluation of heterocyclic bis-aryl amides as novel Src homology 2 domain containing protein tyrosine phosphatase-2 (SHP2) inhibitors
node for oncogenic cell-signaling cascades including the PD-L1/PD-1 pathway. Consequently, SHP2 has emerged as a compelling target for novel anti-cancer agents. Replacing one of phenyl ring in PTP1B inhibitor 1 with heterocyclic ring led to a series of heterocyclic bis-aryl amide derivatives. The representative compound 7b displayed SHP2 inhibitory activity with IC50 of 2.63 ± 0.08 μM, exhibited about