The synthesis of galactopyranosyl-substituted derivatives of pheophorbide

New pheophorbide and pyropheophorbide derivatives containing carbohydrate fragments, derivatives of galactopyranose, were synthesized. Galactopyranosylpheophorbide and galactopyranosylpyropheophorbide with free hydroxyl groups were found to be water-soluble and useful as sensitizers in photodynamic therapy of cancer.     

Synthesis of a modified analog of a native lipotripeptide from the E. coli bacterial wall]

The following prospective immunomodulators, aliphatic derivatives of amino acids and peptides, were synthesized: N-palmitoyl-L-cysteine, N-palmitoyl-S-[1,2-bis(hexadecyloxycarbonyl)ethyl]-L-cysteine, N-palmitoyl-S-[1,2-bis(hexadecyloxycarbonyl)ethyl]-L-cysteinyl-L-s erine, and N-palmitoyl-S-[1,2-bis(hexadecyloxycarbonyl) ethyl]-L-cysteinyl-L-seryl-L-serine.     

PH-sensitive cationic lipopeptides for the design of drug-delivery systems

Lipopeptides on the basis of L-glutamic acid and glutamine di- and monoesters with aliphatic alcohols of various lengths that contain L-arginine, L-ornithine, and L-lysine were synthesized. The behavior of these amphiphiles in aqueous medium was shown to depend on their structure.     

Conjugates of porphyrins with carbohydrates

The methods of synthesis and properties of prophyrins covalently linked with carbohydrates are considered. Special attention is paid to the prospects of using this class of compounds as photosensitizers in photodynamic cancer therapy.     

Synthesis and properties of O- and S-glycosylated derivatives of pyropheophorbide a

New O- and S-glycosylated derivatives of pyropheophorbide a were synthesized in the context of the design of photosensitizers for photodynamic cancer therapy. The resulting amphiphilic conjugates were found to be sufficiently water-soluble and suitable for the study of the photosensitizer penetration and accumulation in tumors.     

Synthesis of lipophilic RGD-peptide derivatives

Bishexadecyl ester of RDG peptide was synthesized in solution by the conventional methods of peptide chemistry in a total yield of 48%. The English version of the paper: Russian Journal of Bioorganic Chemistry, 2004, vol. 30, no. 2; see also http://www.maik.ru.