| 摘要 |
PCT No. PCT/CA91/00078 Sec. 371 Date Oct. 5, 1992 Sec. 102(e) Date Oct. 5, 1992 PCT Filed Mar. 13, 1991 PCT Pub. No. WO91/13901 PCT Pub. Date Sep. 19, 1991.A process for preparing 2,3'-O-cyclocytidine wherein 3'-deoxy-3'-organosulfonyl cytidine is refluxed in the absence of base. 2,3'-cyclocytidine is an intermediate in the preparation of 1-(B-D-xylo-pentofuranose) cytosine, an inhibitor of DNA synthesis.
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