L-glutamic acid di-tert-butyl ester hydrochloride
2,4-bis(pivaloylamino)-7-(4-carboxyphenyl)-5-deaza-6,7,8,9-tetrahydropyrido<3,4-g>pteridine
2,4-bis(pivaloylamino)-7-<4-(tert-butoxycarbonyl)phenyl>-5-deaza-6,7,8,9-tetrahydropyrido<3,4-g>pteridine
4-[5-(2,2-Dicyano-vinyl)-4-pyrrolidin-1-yl-3,6-dihydro-2H-pyridin-1-yl]-benzoic acid tert-butyl ester
2,4-diamino-7-<4-(tert-butoxycarbonyl)phenyl>-5-deaza-6,7,8,9-tetrahydropyrido<3,4-g>pteridine