Synthesis of cytosine radiolysis products: cis- and trans-1-carbamoyl-4,5-dihydroxyimidazolidin-2-one
作者:Nelson J. Leonard、David F. Wiemer
DOI:10.1021/ja00441a055
日期:1976.12
Treatment of 3 with OsO/sub 4/ in dry DMF, followed by reductive cleavage with H/sub 2/S, provided the pure cis isomer 1. The structure of the cis isomer was confirmed by observing (by NMR) its conversion to 8 upon treatment with Os/sub 2/O/sub 6/.py/sub 4/. The assignment of /sup 1/H NMR chemical shifts and coupling constants for the intermediates and products were confirmed in part by examination