18-(2-Carboxyethyl)-20-(carboxymethyl)-12-ethenyl-7-ethyl-3,8,13,17-tetramethyl-17,18,22,23-tetrahydroporphyrin-2-carboxylic acid 生成 3-[(23S,24S)-18-ethenyl-13-ethyl-14,19,23,28-tetramethyl-4,6-dioxo-5-oxa-9,25,26,27-tetrazahexacyclo[20.2.1.17,10.112,15.117,20.02,8]octacosa-1,7,10(28),11,13,15(27),16,18,20,22(25)-decaen-24-yl]propanoic acid