(S)-Benzyl 4-(4-(tert-butoxycarbonyl)-3-(cyanomethyl)piperazin-1-yl)-2-(methylthio)-5,6-dihydropyrido[3,4-d]pyrimidine-7(8H)-carboxylate 100mg

(S)-Benzyl 4-(4-(tert-butoxycarbonyl)-3-(cyanomethyl)piperazin-1-yl)-2-(methylthio)-5,6-dihydropyrido[3,4-d]pyrimidine-7(8H)-carboxylate 100mg