中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
—— | benzyl 4-benzyloxy-3,6-dihydroxy-2-methylbenzoate | 219700-83-1 | C22H20O5 | 364.398 |
—— | 2,4-bis-(benzyloxy)-6-methylbenzoic acid | 7141-98-2 | C22H20O4 | 348.398 |
—— | benzyl 4-benzyloxy-2-hydroxy-6-methylbenzoate | 214483-47-3 | C22H20O4 | 348.398 |
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
—— | crustinic acid | 139728-25-9 | C24H20O11 | 484.416 |
—— | benzyl 4-benzyloxy-3-(2',4'-dihydroxy-6'-methylbenzoyloxy)-6-hydroxy-2-methylbenzoate | 219700-76-2 | C30H26O8 | 514.532 |
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.