摘要:
The present invention provides a novel method of producing the 12-membered ring macrolide compound 11107D having an antitumor activity by biological transformation. Starting material which is the 12-membered ring macrolide compound 11107B represented by the formula (I) is incubated in the presence of a strain belonging to the genus Mortierella, the genus Streptomyces or the family Micromonosporaceae (for example, Streptomyces sp. AB-1704 strain (FERM BP-8551)), each of which has the ability of transforming the 12-membered ring macrolide compound 11107B into a 11107D substance represented by the formula (II), or a preparation of its cultured myceha and oxygen, and then 11107D substance which is a target material is collected from the treating solution.
摘要:
The present invention provides a novel method of producing the 12-membered ring macrolide compound 11107D having an antitumor activity by biological transformation. Starting material which is the 12-membered ring macrolide compound 11107B represented by the formula (I) is incubated in the presence of a strain belonging to the genus Mortierella, the genus Streptomyces or the family Micromonosporaceae (for example, Streptomyces sp. AB-1704 strain (FERM BP-8551)), each of which has the ability of transforming the 12-membered ring macrolide compound 11107B into a 11107D substance represented by the formula (II), or a preparation of its cultured mycelia and oxygen, and then 11107D substance which is a target material is collected from the treating solution.
摘要:
A method of manufacturing a pipecolamide derivative, characterized in that pipecolic acid or an acid salt thereof is reacted with an amine in an inert solvent in the presence of a condensing agent such as dicyclohexylcarbodiimide, 1-ethyl-2-(2-dimethylaminopropyl)carbodiimide, methanesulfonyl chloride or phosphoryl chloride. Pipecolamide derivatives, particularly in optically active forms thereof can be efficiently and economically manufactured without harmful gas by-products.
摘要:
The present invention provides a method for producing a 12-membered ring macrolide compound expected as a prophylactic or therapeutic agent for solid tumors and the like, and a production intermediate thereof. In detail, by acetalizing hydroxyl groups at 6- and 7-positions of a 12-membered ring macrolide compound being a raw material with dialkyl tin (IV) oxide and, after that, reacting the product with a carbamoyl halide derivative, the 7-position urethane derivative of the 12-membered ring macrolide compound being the target is effectively produced, without protecting hydroxyl groups at other positions.