tert-Butyl 4,6-dimethyl-5-(prop-2-yn-1-yl)-3,5-dihydropyrrolo[3,4-c]pyrrole-2(1H)-carboxylate 250mg

tert-Butyl 4,6-dimethyl-5-(prop-2-yn-1-yl)-3,5-dihydropyrrolo[3,4-c]pyrrole-2(1H)-carboxylate 250mg