Spiro[cyclopentane-1,6'(5'H)-pyrrolo[3,4-c]pyrazole]-5'-carboxylic acid, 3'-amino-1',4'-dihydro-, 1,1-dimethylethyl ester 1g

Spiro[cyclopentane-1,6'(5'H)-pyrrolo[3,4-c]pyrazole]-5'-carboxylic acid, 3'-amino-1',4'-dihydro-, 1,1-dimethylethyl ester 1g