中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
—— | 2-heptyl-4-hydroxy-6-methoxybenzoic acid | 4724-11-2 | C15H22O4 | 266.337 |
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
苯甲酸,2-庚基-4-[(2-羟基-4-甲氧基-6-戊基苯甲酰)氧代]-6-甲氧基-,苯基甲基酯 | benzyl 2'-O-methylhyperlatolate | 139051-37-9 | C35H44O7 | 576.73 |
—— | benzyl hyperconfluentate | 193617-68-4 | C37H46O8 | 618.767 |
—— | 2'-O-methylhypertolic acid | 108529-17-5 | C28H38O7 | 486.606 |
—— | 2'-O-methylsuperlatolic acid | 108544-38-3 | C30H42O7 | 514.659 |
—— | superplanaic acid | —— | C31H44O7 | 528.686 |
—— | hyperplanaic acid | —— | C29H40O7 | 500.632 |
—— | benzyl hyperconfluentate ethylene acetal | 193617-58-2 | C39H50O9 | 662.821 |
—— | benzyl 4-O-demethylsuperconfluentate ethylene ketal | 184375-09-5 | C47H58O9 | 766.972 |
—— | 3,5-dichloro-2'-O-methylnorhyperlatolic acid | —— | C27H34Cl2O7 | 541.469 |
The unambiguous total synthesis of the lichen depsides 2-O-methylglomelliferic acid (39), 4-O- methylhyperolivetoric acid (40), hyperconfluentic acid (41), microphyllinic acid (42), arthoniaic acid (43), 2′-O-methylmicrophyllinic acid (44), 2′-O-methylhyperphyllinic acid B (45), 4-O-methylsuperolivetoric acid (46), 2′-O-methylhyperphyllinic acid A (47), 2′-O-methylnorsuperphyllinic acid (48) and 4-O- methyloxocryptochlorophaeic acid (49) has been achieved by the condensation of an appropriately substituted orsellinic acid and protected phenol in the key step, followed by deprotection.
The structure of the lichen depsides 2'-O-methylsuperphyllinic acid (3), glaucophaeic acid (4), superconfluentic acid (5) and 4-O-demethylsuperconfluentic acid (6), and the isocoumarin insignin (7) have been confirmed by unambiguous synthesis.
The new depsides 3,5-dichloro-2′-O-methylnorstenosporic acid (4), 5-chloro-2′-O-methylanziaic acid (5) and 3,5-dichloro-2′-O-methylnorhyperlatolic acid (6) have been detected in the lichenLecanora lividocinerea and the structures of these metabolites have been established by unambiguous synthesis. In addition, the synthesis of the depside 3,5-dichloro-4-O-demethylplanaic acid (7) is described.