| 中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
|---|---|---|---|---|
| —— | 7-ethyl-18-(2-methoxycarbonyl-ethyl)-20-methoxycarbonylmethyl-3,8,13,17-tetramethyl-12-vinyl-17,18-dihydro-21H,23H-porphine-2-carboxylic acid methyl ester | 15592-17-3 | C37H42N4O6 | 638.764 |
A series of novel chlorophyll-a homologs with long wavelength absorption were synthesized via modification of methyl pyropheophorbide-a used as starting material. For introducing electron-withdrawing group methylenemalononitrile moiety was established on the periphery of modified chlorin by Knoevenagel reaction of malononitrile with formyl group at 3-, 15-position and 131-carbonyl group on the exocyclic ring. All of chlorins containing the methylenemalononitrile structure show Qy-absorption at more than 700 nm. Moreover, we have examined a preliminary in vitro photodynamic anticancer effect of these new derivatives on mouse sarcoma S-180 cell line.