developed an efficient protocol for copper-catalyzed olefinaziridinationusing 5-methyl-2-pyridinesulfonamide or 2-pyridinesulfonyl azide as the nitrenoid source. The presence of a 2-pyridyl group significantly facilitates aziridination, suggesting that the reaction is driven by the favorable formation of a pyridyl-coordinated nitrenoid intermediate. Using this chelation-assisted strategy, synthetically
Modulators of Cystic Fibrosis Transmembrane Conductance Regulator
申请人:VERTEX PHARMACEUTICALS INCORPORATED
公开号:US20160095858A1
公开(公告)日:2016-04-07
The present invention features a compound of formula I:
or a pharmaceutically acceptable salt thereof, where R
1
, R
2
, R
3
, W, X, Y, Z, n, o, p, and q are defined herein, for the treatment of CFTR mediated diseases, such as cystic fibrosis. The present invention also features pharmaceutical compositions, method of treating, and kits thereof.
[EN] FUSED BICYCLIC COMPOUNDS AND USE THEREOF AS PI3K INHIBITORS<br/>[FR] COMPOSÉS BICYCLIQUES FUSIONNÉS ET UTILISATIONS DE CEUX-CI COMME INHIBITEURS DE P13K
申请人:MERCK SERONO SA
公开号:WO2009133127A1
公开(公告)日:2009-11-05
The invention relates to compounds of formula (I), for the regulation of phosphoinositides 3-kinases activity and related diseases.
The present invention relates a series of compounds of Formula I
wherein R
1
, R
2
, R
3
, and B are as defined in the specification. The compounds are useful for the inhibition of HIV integrase and for the treatment of AIDS or ARC by administering compounds of the formula.
We have developed, on the basis of a chelation-strategy, an efficient copper-catalyzed aziridination protocol with the use of 5-methyl-2-pyridinesulfonamide and Phl(OAc)(2). The reaction proceeds smoothly under mild conditions to give aziridines in moderate to good yields in the absence of external ligands or bases. The coordination-assisted approach offers the additional benefits that efficient deprotection of the N-substituent and selective aziridine ring-opening are effectively achieved.