Synonyms: 4-Amino-5-cyano-7-((S)-2,4-dihydroxybutyl)pyrrolo(2,3-d)pyrimidine;4-Amino-5-cyano-7-[(S)-2,4-dihydroxybutyl]pyrrolo[2,3-d]pyrimidine;7H-Pyrrolo(2,3-d)pyrimidine-5-carbonitrile, 4-amino-7-(2,4-dihydroxybutyl)-, (S)-;7H-Pyrrolo[2,3-d]pyrimidine-5-carbonitrile, 4-amino-7-(2,4-dihydroxybutyl)-, (S)-