Synthesis and Crystallization Research of Voclosporin
Bibo Jiang,
Jiajia Liu,
Ying Li
et al.
Abstract:In this study, an enhanced methodology for the synthesis and crystallization of Voclosporin was devised. Isopropyl acetate was selected as the solvent for the acetylation reaction, resulting in a substantial reduction in the reaction duration from 4 days to 15 h. The reagent (E)-trimethyl (3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)prop-1-en-1-yl)silane ( 8) was chosen for the Peterson reaction, achieving a conversion rate exceeding 90%. Subsequently, 1,8-diazabicyclo[5,4,0]undec-7-ene (DBU) was employed a… Show more
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