申请人:The United States of America as represented by the Department of Health,
公开号:US04275057A1
公开(公告)日:1981-06-23
Seven-membered heterocyclic nucleosides used to inhibit the deamination enzyme responsible for the inactivation of arabinosylcytosine (ara--C). Preferred nucleosides containing a seven-member aglycone are as follows: ##STR1## Preferred aglycones are as follows: ##STR2## Active components utilized against pyrimidine deaminases from mammalian tissues (mouse kidney and human liver) showed optimum advantage when compared with tetrahydrouridine (THU).
用于抑制负责去氨基化阿拉伯核苷胞嘧啶(ara-C)失活的酶的七元杂环核苷。首选含有七元缺糖基的核苷如下:首选的缺糖基如下:从哺乳动物组织(小鼠肾脏和人类肝脏)中利用的活性组分对嘧啶去氨基酶显示出与四氢尿嘧啶(THU)相比具有最佳优势。