Highly efficient synthesis of N-confused meso-tetraspirocyclohexyl calix[4]pyrrole using Brønsted acidic ionic liquids as catalysts
摘要:
An efficient, green and novel protocol is described for high yield synthesis of N-confused meso-tetra-spirocyclohexyl calix[4]pyrrole. In aqueous solution, the condensation of pyrrole and cyclohexanone in the presence of Bronsted acidic ionic liquid catalysts afforded N-confused calix[4]pyrrole in up to 62.5% yield which represents a threefold yield improvement over existing protocol and makes significant quantity of N-confused calix[4]pyrrole readily available. (c) 2012 Elsevier Ltd. All rights reserved.
[EN] 7-(METHYLAMINO)PYRAZOLO[1,5-A]PYRIMIDINE-3-CARBOXAMIDE COMPOUNDS<br/>[FR] COMPOSÉS DE 7-(MÉTHYLAMINO) PYRAZOLO [1,5-A] PYRIMIDINE-3-CARBOXAMIDE
申请人:LILLY CO ELI
公开号:WO2021162942A1
公开(公告)日:2021-08-19
The present invention provides a compound of Formula (I) wherein R is (II), (III), (IV) or a pharmaceutically acceptable salt thereof, useful for treating psoriasis, systemic lupus erythematosus, or type 1 diabetes.
[EN] SUBSTITUTED 7-(METHYLAMINO)PYRAZOLO[1,5-A]PYRIMIDINE-3-CARBOXAMIDE DERIVATIVES<br/>[FR] DÉRIVÉS DE 7-(MÉTHYLAMINO)PYRAZOLO [1,5-A]PYRIMIDINE-3-CARBOXAMIDE SUBSTITUÉS
申请人:LILLY CO ELI
公开号:WO2021162944A1
公开(公告)日:2021-08-19
The present invention provides a compound of Formula (I) wherein R is (II) or (III), or a pharmaceutically acceptable salt thereof, useful for treating psoriasis, systemic lupus erythematosus, or type 1 diabetes.