中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
2,4-二羟基-6-甲基甲酸乙酯 | ethyl orselinate | 2524-37-0 | C10H12O4 | 196.203 |
2,4-二羟基-3,5-二溴-6-甲基苯甲酸乙酯 | ethyl 3,5-dibromo-2,4-dihydroxy-6-methyl benzoate | 21855-46-9 | C10H10Br2O4 | 353.995 |
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
—— | benzyl 4-benzyloxy-2-hydroxy-6-methylbenzoate | 214483-47-3 | C22H20O4 | 348.398 |
—— | ethyl 4-benzyloxy-5-formyl-2-hydroxy-6-methylbenzoate | 124281-11-4 | C18H18O5 | 314.338 |
4-苄氧基-3-甲酰基-2-羟基-6-甲基苯甲酸乙酯 | ethyl 4-benzyloxy-3-formyl-2-hydroxy-6-methylbenzoate | 124281-12-5 | C18H18O5 | 314.338 |
—— | Ethyl-4-benzyloxy-2-methyl-6-(3-phenyl-propoxy)-benzoate | 304024-82-6 | C26H28O4 | 404.506 |
—— | 4-benzyloxy-2-methoxy-6-methylbenzoic acid | 22375-06-0 | C16H16O4 | 272.301 |
—— | ethyl 4-benzyloxy-3-chloro-6-hydroxy-2-methylbenzoate | 131524-44-2 | C17H17ClO4 | 320.773 |
—— | ethyl hematommate | 39503-14-5 | C11H12O5 | 224.213 |
—— | 4-benzyloxy-3-chloro-6-hydroxy-2-methylbenzoic acid | 131524-45-3 | C15H13ClO4 | 292.719 |
—— | ethyl 4-benzyloxy-2-methyl-6-[4-(quinolin-2-ylmethoxy)-butoxy]-benzoate | 304025-06-7 | C31H33NO5 | 499.607 |
—— | benzyl-4-(4'-benzyloxy-3'-chloro-6'-hydroxy-2'-methoxybenzoyloxy)-2,6-dihydroxybenzoate | 131524-47-5 | C29H23ClO8 | 534.95 |
—— | benzyl 4-(4'-benzyloxy-3'-chloro-6'-hydroxy-2'-methoxybenzoyloxy)-3-chloro-2,6-dihydroxybenzoate | 131524-48-6 | C29H22Cl2O8 | 569.395 |
—— | 4-benzyloxy-2-methoxy-6-methylbenzoyl chloride | 159663-38-4 | C16H15ClO3 | 290.746 |
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.
A new synthetic route to norlichexanthone (1,3,6-trihydroxy-8-methyl- 9H-xanthen-9-one) derivatives has been developed by using a Smiles rearrangement of an appropriately substituted depside in the key step. 2,4,7-Trichloronorlichexanthone (22) and 4,5,7- trichloronorlichexanthone (29) have been prepared by this method. The former xanthone (22) was shown to be a constituent of the lichens Lecanora sulphurata and L. flavo-pallescens and the latter (29) a constituent of Micarea austroternaria var. isabellina.