Spiro[1,3-dioxolane-2,1'(5'H)-indolizine]-7'-acetic acid, α-ethyl-6'-formyl-2',3'-dihydro-5'-oxo-, ethyl ester
SPIRO[1,3-DIOXOLANE-2,1'(5'H)-INDOLIZINE]-7'-ACETIC ACID, Α-ETHYL-6'-FORMYL-2',3'-DIHYDRO-5'-OXO-, ETHYL ESTER螺[1,3-二氧戊环-2,1'(5'H)-中氮茚]-7'-乙酸,Α-乙基-6'-甲酰基-2',3'-二氢-5'-氧代-, 乙酯