Disclosed herein is a process for production of an O-alkylrapamycin derivative represented by the general formula (1) below by reaction between rapamycin and alkyl triflate in an organic solvent, characterized in that the reaction is carried out in the presence of trialkylamine.
(where R denotes alkyl, arylalkyl, hydroxyalkyl, alkoxyalkyl, acyloxyalkyl, aminoalkyl, alkylaminoalkyl, alkoxycarbonylaminoalkyl, acylaminoalkyl, or aryl.) This process is capable of producing O-alkylrapamycin derivative efficiently owing to improvement in reaction yields for O-alkylation.
本文揭示了一种通过在有机溶剂中,利用
三烷基胺的存在,在
雷帕霉素和烷基三
氟甲烷磺酸酯之间发生反应,从而生产下述一般式(1)所代表的O-烷基
雷帕霉素衍
生物的生产过程。在这个过程中,R代表烷基、芳基烷基、羟基烷基、烷氧基烷基、乙酰氧基烷基、
氨基烷基、烷基
氨基烷基、烷氧羰基
氨基烷基、乙酰
氨基烷基或芳基。由于对O-烷基化的反应产率进行了改进,该过程能够高效地生产O-烷基
雷帕霉素衍
生物。