Conformational studies of phosphorus-containing ring systems of pharmacological and biochemical importance-derivatives of cyclophosphamide and cyclic nucleotides

Abstract
Results of a systematic study of the conformational features of the 1, 3, 2-oxazaphosphorinane ring system characteristic of the antitumor drug cyclophosphamide and its congeners are reported. Comparisons are made to the related 1, 3, 2-dioxaphosphorinane ring system of nucleoside cyclic 3′, 5′-monophosphates, e. g. cAMP and cTMP, and their neutral derivatives, I.