CH2_1232CH2_1234CH2_1235CH2_1236CH2_1237CH2_1240CH2_1241CH2_1242CH2_1243CH2_1244CH2_1247CH2_1248CH2_1249CH2_1250CH2_1251CH2_1252CH2_1254CH2_1255CH2_1256CH2_1257