4-(1,3-bis((benzyloxy)carbonyl)guanidino)butyl (R)-1-methoxy-3-(9-((triisopropylsilyl)oxy)nonyl)-3,5,6,7-tetrahydropyrrolo[1,2-c]pyrimidine-4-carboxylate

(S)-3a,6,7,8-Tetrahydro-3H,4H-2-oxa-4,5a-diaza-as-indacene-1,5-dione

(S)-3-Acetoxymethyl-1-oxo-1,2,3,5,6,7-hexahydro-pyrrolo[1,2-c]pyrimidine-4-carboxylic acid methyl ester

(S)-3-Hydroxymethyl-1-methoxy-3,5,6,7-tetrahydro-pyrrolo[1,2-c]pyrimidine-4-carboxylic acid methyl ester

(S)-3-Hydroxymethyl-1-oxo-1,2,3,5,6,7-hexahydro-pyrrolo[1,2-c]pyrimidine-4-carboxylic acid methyl ester