摘要:
PROBLEM TO BE SOLVED: To provide a compound for binding a bio-active substance such as a treating medicine or optionally a diagnostic agent with bio-compatible particles including living cells or viruses, and not-living carrier particles, a composition and a method of the same. SOLUTION: This compound for binding a therapeutically effective substance with lipid-containing bio-particles is characterized by formula (wherein, B is selected from a group consisting of a peptide, an enzyme and an antibody having CO and/or COOH functional groups and capable of binding with a spacer part; R, R1 are each a hydrocarbon substituting group equipped with 1-30 carbon atoms; R2 is a spacer component; X, X1 are same or different and each O, S, C(CH3 )2 or Se; Y is a bonding group selected from =CR8 -, and =CR8 -CR8 = CR8 -, Z is a substituting group selected from H, an alkyl, and OH; the alkyl group constituted by the above Z substituting group has a 1-4C; and further, A is a pharmaceutically permissible anion).