tert-Butyl 3-amino-6,6-dimethyl-2-(propionyloxy)-4,6-dihydropyrrolo[3,4-c]pyrazole-5(2H)-carboxylate 1g

tert-Butyl 3-amino-6,6-dimethyl-2-(propionyloxy)-4,6-dihydropyrrolo[3,4-c]pyrazole-5(2H)-carboxylate 1g