abstract |
FIELD: pharmacology. n SUBSTANCE: invention relates to a compound of the general formula n n n n or its pharmaceutically acceptable salt. In formula I, R 1 is a hydrogen atom; R 2 is a hydrogen atom and X is an unbranched C 1-6 alkylene group. The invention also relates to a pharmaceutical composition comprising a compound of formula I, for use in photodynamic therapy or diagnostic method. n EFFECT: increased efficiency. n 20 cl, 2 dwg, 3 tbl, 22 ex |