申请人:The United States of America as represented by the Department of Health,
公开号:US04058602A1
公开(公告)日:1977-11-15
The compound 5,6-dihydro-5-azacytidine, 5AC[H], and non-toxic acid addition salts such as the hydrochloride, together with its preparation from 5-azacytidine (5-AC) by reduction of the 5,6-double bond of 5-AC with an alkali metal borohydride such as sodium borohydride. Additionally, 5,6-dihydro-5-azacytidine, 5AC[H], has antitumor activity for murine leukemia systems L1210 and P388 as an injectable. In comparison with the parent compound, 5-AC, the antitumor activity is comparable and 5AC[H] exhibits a more favorable therapeutic index. It also has better solution stability over a broad pH range. A structure for the HCl salt is given below. ##STR1##
化合物5,6-二氢-5-氮杂胞苷(5,6-dihydro-5-azacytidine),5AC[H]和无毒酸盐,如盐酸盐,以及其制备方法,是通过将5-氮杂胞苷(5-AC)的5,6-双键还原为碱金属硼氢化物(如氢氧化钠硼氢化物)来制备的。此外,5,6-二氢-5-氮杂胞苷,5AC[H],作为注射剂对小鼠白血病系统L1210和P388具有抗肿瘤活性。与母化合物5-AC相比,抗肿瘤活性相当,5AC[H]表现出更有利的治疗指数。它还具有更好的溶液稳定性,适用于广泛的pH范围。盐酸盐的结构如下所示。##STR1##