1250443-97-0

Ethyl 5-Boc-4,5,6,7-tetrahydropyrazolo[1,5-a]pyrazine-2-carboxylate 5-tert-butyl 2-ethyl 6,7-dihydropyrazolo[1,5-a]pyrazine-2,5(4H)-dicarboxylate 5-N-Boc-4,5,6,7-tetrahydropyrazolo[1,5-a]pyrazine-2-carboxylic acid ethyl ester O5-tert-butyl O2-ethyl 6,7-dihydro-4H-pyrazolo[1,5-a]pyrazine-2,5-dicarboxylate 6,7-Dihydro-4H-pyrazolo[1,5-a]pyrazine-2,5-dicarboxylic acid 5-tert-butyl ester 2-ethyl ester Pyrazolo[1,5-a]pyrazine-2,5(4H)-dicarboxylic acid,6,7-dihydro-,5-(1,1-dimethylethyl)2-ethyl ester