中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
—— | 2,3-dibenzyloxy-4-methoxy-6-methylbenzoic acid | 219700-85-3 | C23H22O5 | 378.425 |
The unambiguous total synthesis of ten O-methyl and/or C-hydroxy derivatives of gyrophoric acid (1) has been achieved by using the condensation of an appropriately substituted benzoic acid and benzyl lecanorate (33) or benzyl 2-O-methyllecanorate (32) in the key step.