首页> 外国专利> METHOD FOR PREPARING 4-ACETOXY-2ALPHA-BENZOYLOXY-5ALPHA,20- -EPOXY-1,7BETA,10BETA-TRIHYDROXY-9-OXO-TAX-11-EN-13ALPHA- -YL(2R,3S)-3-TERT-BUTOXYCARBONYLAMINO-2-HYDROXY-3- -PHENYLPROPIONATE TRIHYDRATE

METHOD FOR PREPARING 4-ACETOXY-2ALPHA-BENZOYLOXY-5ALPHA,20- -EPOXY-1,7BETA,10BETA-TRIHYDROXY-9-OXO-TAX-11-EN-13ALPHA- -YL(2R,3S)-3-TERT-BUTOXYCARBONYLAMINO-2-HYDROXY-3- -PHENYLPROPIONATE TRIHYDRATE

机译:制备4-ACETOXY-2ALPHA-BENZOYLOXY-5ALPHA,20--EPOXY-1,7BETA,10BETA-TRIHYDROXY-9-OXO-TAX-11-EN-13ALPHA--YL(2R,3S)-3-TERT-的制备方法BUXYXYCARBONYLAMINO-2-HYDROXY-3-PHENYLPROPIONATE TRIHYDATE

摘要

A method for preparing 4-acetoxy-2'alpha'-benzoyloxy- -5'beta',20-epoxy-1,7'beta',10'beta'-trihydroxy-9-oxo-tax-11-en- -yl-13'alpha'(2R,3S)-3-tert-butoxycarbonylamino-2-hydroxy-3- -phenylpropionate trihydrate by crystallisation from a mixture of water and an aliphatic alcohol containing 1 to 3 carbon atoms, and then the product obtained is dried at a temperature rang. from 30 to 50 degrees Celsius, at a pressure rang. from 4 to 7 kPa and in an atmosphere whose relative humidity is about 80 percent.
机译:一种制备4-乙酰氧基-2'α'-苯甲酰氧基--5'β',20-环氧-1,7'β',10'β'-三羟基-9-氧代-tax-11-en-的方法从水和含1至3个碳原子的脂肪醇的混合物中结晶,得到13-13′α′(2R,3S)-3-叔丁氧基羰基氨基-2-羟基-3-苯基丙酸酯三水合物,然后得到产物在一定温度范围内干燥。在30至50摄氏度的压力下在相对湿度约为80%的大气中,温度为4至7 kPa。

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