申请人:Matsuda; Akira
公开号:US05763418A1
公开(公告)日:1998-06-09
The invention relates to a 3'-substituted nucleoside derivative represented by the following general formula (1): ##STR1## wherein B means a nucleic acid base which may have a substituent, Z represents a lower alkynyl or lower alkenyl group which may be substituted by a group represented by the formula: ##STR2## in which R.sup.a, R.sup.b and R.sup.c are individually a lower alkyl group or a phenyl group, or an oxiranyl group which may have at least one lower alkyl group, R.sup.1 and R.sup.2 individually represent H or an ester-forming residue capable of easily leaving in a living body, and R.sup.3 is H, a mono- or polyphosphoric acid residue, or an ester-forming residue capable of easily leaving in a living body, with the proviso that the sugar moiety is ribose, or a pharmaceutically acceptable salt thereof. The 3'-substituted nucleoside derivative according to the invention has an excellent antitumor activity and is hence useful for treatment for and prevention of cancers.
该发明涉及一种由下述一般式(1)表示的3'-取代核苷衍生物:##STR1##其中B表示可能有取代基的核酸碱基,Z代表可能被下述式表示的基团取代的低炔基或低烯基基团:##STR2##其中R.sup.a、R.sup.b和R.sup.c分别为低烷基基团或苯基团,或者可能具有至少一个低烷基基团的环氧丙基基团,R.sup.1和R.sup.2分别表示H或者在活体中容易脱离的酯基残基,R.sup.3为H、单磷酸或多磷酸残基,或者在活体中容易脱离的酯基残基,但糖基是核糖,或其药用可接受盐。根据该发明的3'-取代核苷衍生物具有优异的抗肿瘤活性,因此对于癌症的治疗和预防非常有用。