spy ring compounds and a method of manufacturing the same

摘要

to the present invention represented by any one of a spy formula (1) to (3) ring compound and relates to a method of manufacturing the same, according to the present invention using a platinum compound catalyst, and p- toluenesulfonic acid catalyst through a simple sequential intramolecular cyclization in pharmaceutical and fine chemical applications or as intermediates in natural product synthesis useful the spy ring compounds that can be obtained in a high yield. ; (1 ) (2) ; (3) ; (wherein, R ₁ to R ₁₀ are as defined in the claims)