880257-39-6

6-Boc-5,6,7,8-tetrahydropyrido[4,3-d]pyrimidine-2,4(1h,3h)-dione tert-butyl 2,4-dihydroxy-5H,6H,7H,8H-pyrido[4,3-d]pyrimidine-6-carboxylate tert-butyl 2,4-dihydroxy-7,8-dihydropyrido[4,3-d]pyrimidine-6(5h)-carboxylate tert-butyl 2,4-dioxo-1,3,4,5,7,8-hexahydropyrido[4,3-d]pyrimidine-6(2H)-carboxylate Pyrido[4,3-d]pyrimidine-6(2H)-carboxylic acid,1,3,4,5,7,8-hexahydro-2,4-dioxo-, 1,1-dimethylethyl ester