104832-18-0
(4R,5R)-methyl 2,2-dimethyl-5-(2-(triphenylphosphoranylidene)acetyl)-1,3-dioxolane-4-carboxylate
→
104738-66-1
(4S,5R)-methyl 2,2-dimethyl-5-(2-(triphenylphosphoranylidene)acetyl)-1,3-dioxolane-4-carboxylate
104010-72-2
(+)-(3As,6as)-3a,6a-二氢-2,2-二甲基-4H-环戊并-1,3-二氧代-4-酮