Telomerase inhibitors containing as the active ingredient porphyrin derivatives represented by general formula (I), N-(lower alkyl)-substituted derivatives thereof (wherein the lower alkyl is located on the nitrogen atom of the pyrrole ring of the porphyrin ring) or metal coordinates thereof or pharmacologically acceptable salts thereof: (I) wherein R1, R2, R3, R4, R5, R6, R7 and R8 are the same or different and each represents hydrogen, formyl, optionally substituted lower alkyl, optionally substituted lower alkenyl, carboxy, optionally substituted lower alkoxycarbonyl, CONR9R10 (wherein R9 and R10 are the same or different and each represents hydrogen or optionally substituted lower alkyl), sulfo, lower alkoxysulfonyl or cyano.
Telomerase inhibitors containing as the active ingredient porphyrin derivatives represented by general formula (I), N-(lower alkyl)-substituted derivatives thereof (wherein the lower alkyl is located on the nitrogen atom of the pyrrole ring of the porphyrin ring) or metal coordinates thereof or pharmacologically acceptable salts thereof:(I) 其中 R1、R2、R3、R4、R5、R6、R7 和 R8 相同或不同,且各自代表
氢、甲酰基、任选取代的低级烷基、任选取代的低级
烯基、羧基、任选取代的低级烷
氧基羰基、CONR9R10(其中 R9 和 R10 相同或不同,且各自代表
氢或任选取代的低级烷基)、磺酰基、低级烷
氧基磺酰基或
氰基。