US Patent 7838122 Hydrazide compounds with angiogenic activity

Compounds exhibiting angiogenic properties incorporating the structure of Formula I:R3—NH—NH—C(═O)—R2—P—R1  (I)wherein P is a water-soluble, biodegradable polymer, R1 is hydrogen, lower alkyl, lower alkoxy or —R2—C(═O)—NH—NH—R3; each R2 is independently —CH2—, —NH— or O; and each R3 is independently hydrogen or a residue of a naturally occurring alpha-L-amino acid or dipeptide thereof. Polymer networks crosslinked with hydrazide compounds are also disclosed, together with implantable medical devices incorporating the compounds and crosslinked polymers, and angiogenesis-promoting treatment methods, including wound-treatment methods.