A Scalable Synthesis of CE-157119 HCl Salt, an SRI/5-HT2A Antagonist
摘要:
A scalable synthesis of CE-157119 HCl salt (1), an SRI/5-HT2A antagonist, was developed via the regioselective SNAr etherification between a phenol and an N-methylamide. This early development route shortened the original 5-step synthesis to three steps, eliminated all chromatography and increased the overall yield from 15% to 34%. The process was implemented for API manufacture from 100-g scale to multikilogram scale.
Amine-boranes as Dual-Purpose Reagents for Direct Amidation of Carboxylic Acids
作者:P. Veeraraghavan Ramachandran、Henry J. Hamann、Shivani Choudhary
DOI:10.1021/acs.orglett.0c03184
日期:2020.11.6
Amine-boranes serve as dual-purpose reagents for direct amidation, activating aliphatic and aromatic carboxylicacids and, subsequently, delivering amines to provide the corresponding amides in up to 99% yields. Delivery of gaseous or low-boiling amines as their borane complexes provides a major advantage over existing methodologies. Utilizing amine-boranes containing borane incompatible functionalities
[EN] SYNTHESIS OF THERAPEUTIC DIPHENYL ETHERS<br/>[FR] SYNTHÈSE D'ÉTHERS DIPHÉNYLIQUES À USAGE THÉRAPEUTIQUE
申请人:PFIZER PROD INC
公开号:WO2007010350A1
公开(公告)日:2007-01-25
[EN] This invention is directed to a method of synthesizing compounds of Formula (I) and to intermediates useful in the synthesis of compounds of Formula (I): wherein X, Y, R1, R2, R3, and R4 are as defined herein above. [FR] La présente invention concerne un procédé de synthèse de composés répondant à la formule (I) et des intermédiaires utiles dans la synthèse des composés répondant à la formule (I) : dans laquelle X, Y, R1, R2, R3 et R4 sont tels que définis dans la présente invention.