Procedure for the preparation of (2R, 3S) - 3 - (benzoylamino - 2 - hydroxy - 3 - Phenylpropionate 4.10 - benzoyloxy diacetoxi - 2 or - beta - 5, 20 - epoxy - 17 beta - dihydroxy - 9-oxo - Tax - 11 - 13 - or - ilo Trihydrate and Trihydrate thus obtained

摘要

This is a procedure for the preparation of (2R, 3S) - 3 - (benzoylamino - 2 - hydroxy - 3 - Phenylpropionate 4.10 - - - - diacetoxi 2u00d3 benzoyloxy 5u00df, 20 epoxy - 1.7 beta dihydroxy - 9-oxo - Tax - 11 - - - i 13u00d3 Trihydrate,By crystallization from a mixture of water and ethanol (alcohol C1 - C3) and reduced Lubricating Vacuum drying of the product.The Product obtained was eventually preserved atmosphere relative humidity lower than 20%. It also justifies the trihidratoobtenido.