专利号:US-2020149034-A1 优先权日:2017-03-17 标题:Methods and Compositions for Synthesis of Encoded Libraries
专利号:US-6861553-B2 优先权日:2002-07-03 标 题:Process for preparing nateglinide and intermediates thereof 发明人:YAHALOMI RONIT; SHAPIRO EVGENY; DOLITZKY BEN-ZION; GOZLAN YIGAEL 权利人:TEVA PHARMA 摘要:Provided is a process for preparation of an intermediate in the synthesis of nateglinide. Trans-4-isopropylcyclohexane acid chloride is formed by reacting 4-isopropylcyclohexanecarboxyl acid with thionyl chloride in the presence of an effective amount of an organic amide.Also provided are processes for preparation of nateglinide by acylation of a suitable salt of D-phenylalanine with trans-4-isopropylcyclohexane acid chloride in both a single and a two phase system, and in water free of a co-solvent.