中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
—— | ethyl 3-benzyloxy-2,4-dimethoxy-6-methylbenzoate | 219700-93-3 | C19H22O5 | 330.381 |
—— | ethyl 3-formyl-2,4-dimethoxy-6-methylbenzoate | 53887-73-3 | C13H16O5 | 252.267 |
乙基3-甲酰基-2-羟基-4-甲氧基-6-甲基苯甲酸酯 | ethyl 3-formyl-2-hydroxy-4-methoxy-6-methylbenzoate | 38629-37-7 | C12H14O5 | 238.24 |
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.