(3S,3aR,4S,6aR,9S,9aR,9bR)-4-hydroxy-9-methyl-6-methylene-3-((m-tolylthio)methyl)octahydroazuleno[4,5-b]furan-2,8(3H,9bH)-dione

2-(3-甲基苯基)硫基乙酸

3-溴甲基苯

3-碘甲苯

正丁基锂