METHOD FOR PRODUCING SULFONYL AMIDINE COMPOUND

摘要

Provided are: a method for producing a sulfonyl amidine compound, which has an excellent gonadotropin releasing hormone receptor antagonism and is useful as a therapeutic agent for gonadotropin-dependent diseases (for example, prostate cancer, mammary cancer, endometriosis, uterine fibroid, prostatic hyperplasia, etc.) or a salt thereof; and a synthesis intermediate useful in the production method. The production method according to the present invention, whereby formation of a by-product, said by-product being hardly removed unless column purification is conducted, and racemization of the target compound are inhibited and therefore the target compound can be obtained at a high purity, is suitable for industrial production.