中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
2,4-二羟基-6-戊基苯甲酸甲酯 | methyl 2,4-dihydroxy-6-pentylbenzoate | 58016-28-7 | C13H18O4 | 238.284 |
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
—— | methyl 4-benzyloxy-6-methoxy-2-pentylbenzoate | 94103-02-3 | C21H26O4 | 342.435 |
—— | benzyl 4-benzyloxy-6-methoxy-2-pentylbenzoate | 122849-85-8 | C27H30O4 | 418.533 |
—— | methyl 4-hydroxy-2-methoxy-6-pentylbenzoate | 94103-03-4 | C14H20O4 | 252.31 |
—— | methyl 4-benzyloxy-2,5-dihydroxy-6-pentylbenzoate | 113487-78-8 | C20H24O5 | 344.408 |
—— | methyl 4-benzyloxy-3-(2'-hydroxy-4'-methoxy-6'-propylbenzoyloxy)-6-hydroxy-2-pentylbenzoate | 113487-80-2 | C31H36O8 | 536.622 |
—— | 2-(2'-benzyloxy-4'-hydroxy-5'-mrthoxycarbonyl-6'-pentylphenoxy)-4-methoxy-6-propylbenzoic acid | 113487-82-4 | C31H36O8 | 536.622 |
—— | 2-(2'-benzyloxy-5'-carboxy-4'-hydroxy-6'-pentylphenoxy)-4-methoxy-6-propylbenzoic acid | 113500-97-3 | C30H34O8 | 522.595 |
—— | methyl 3-<4',6'-dihydroxy-2'-(3-oxopentyl)benzoyl>-4-hydroxy-6-methoxy-2-pentylbenzoate | 122849-78-9 | C26H32O8 | 472.535 |
—— | epiphorellic acid 2 | 101910-68-3 | C26H32O9 | 488.535 |
—— | 2-(5'-carboxy-2',4'-dihydro-6'-pentylphenoxy)-4-methoxy-6-propylbenzoic acid | 113487-85-7 | C23H28O8 | 432.471 |
—— | 8-hydroxy-3-methoxy-6-pentyl-1propyl-11-oxo-11H-dibenzo<1,4>dioxepin-7-carboxylic acid (stenosporonic acid) | 103538-04-1 | C23H26O7 | 414.455 |
The depsidones divaronic acid (24) (8-hydroxy-3-methoxy-1,6-dipropyl-11- oxo -11H- dibenzo [ b,e ][1,4]dioxepin-7-carboxylic acid) and stenosporonic acid (25) (8-hydroxy-3-methoxy-6-pentyl-l-propyl-ll-oxo-l1H-dibenzo[ b,e ][1,4]dioxepin-7-carboxylic acid) have been prepared by unambiguous synthesis, and have been shown to cooccur with colensoic acid, atranorin and chloroatranorin in the lichen Paraparmelia mongaensis. The syntheses employed a novel biomimetic-type approach which involved a Smiles rearrangement of a precursor meta-depside in the key step. This rearrangement has important biosynthetic implications and may account for the natural occurrence of isostructural depside-depsidone pairs.