abstract |
(57) [Summary] (Modified) [Objective] To provide a novel lactone useful for the production of 15-pentadec-11 / 12-enolides and a process for producing the same. [Constitution] The following formula (IX) Lactone. [In the formula, n is 0, 1 or 2, and OR is Etc., R 1 represents alkyl, aryl, etc.] |