title: Stereochemistry of pyrimidine nucleosides: conformational analysis of cytidine, thymidine, 4-thiouridine and deoxycytidine by the neglect of differential overlap molecular orbital method.
mesh_terms: D002241:Carbohydrates; D004735:Energy Transfer; D008961:Models, Structural; D009705:Nucleosides; D013237:Stereoisomerism; D013936:Thymidine; D014529:Uridine
chemical_list: D002241:Carbohydrates; D009705:Nucleosides; D013936:Thymidine; D014529:Uridine