中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
帽柱木碱盐酸盐 | mitragynine | 4098-40-2 | C23H30N2O4 | 398.502 |
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
—— | MGM-9 | 918430-99-6 | C25H33FN2O6 | 476.545 |
—— | methyl (E)-2-[(1S,2S,4S,5S,10S)-13-chloro-5-ethyl-12-methoxy-18,21-dioxa-7,17-diazapentacyclo[8.7.4.01,10.02,7.011,16]henicosa-11(16),12,14-trien-4-yl]-3-methoxyprop-2-enoate | 918431-01-3 | C25H33ClN2O6 | 493.0 |
—— | methyl (E)-2-[(1S,2S,4S,5S,10S)-13-bromo-5-ethyl-12-methoxy-18,21-dioxa-7,17-diazapentacyclo[8.7.4.01,10.02,7.011,16]henicosa-11(16),12,14-trien-4-yl]-3-methoxyprop-2-enoate | 918431-05-7 | C25H33BrN2O6 | 537.451 |
—— | methyl (E)-2-[(1S,2S,4S,5S,10S)-5-ethyl-12,13-dimethoxy-18,21-dioxa-7,17-diazapentacyclo[8.7.4.01,10.02,7.011,16]henicosa-11(16),12,14-trien-4-yl]-3-methoxyprop-2-enoate | 918431-13-7 | C26H36N2O7 | 488.581 |
—— | methyl (E)-2-[(1S,2S,4S,5S,10S)-5-ethyl-12-methoxy-13-nitro-18,21-dioxa-7,17-diazapentacyclo[8.7.4.01,10.02,7.011,16]henicosa-11(16),12,14-trien-4-yl]-3-methoxyprop-2-enoate | 918431-09-1 | C25H33N3O8 | 503.552 |
—— | methyl (E)-2-[(2S,3S,7aS,12bS)-7a-[2-[tert-butyl(dimethyl)silyl]oxyethoxy]-3-ethyl-8-methoxy-9-nitro-2,3,4,6,7,12b-hexahydro-1H-indolo[2,3-a]quinolizin-2-yl]-3-methoxyprop-2-enoate | 918431-15-9 | C31H47N3O8Si | 617.815 |
—— | methyl (E)-2-[(1S,2S,4S,5S,10S)-5-ethyl-12,13,13-trimethoxy-18,21-dioxa-7,17-diazapentacyclo[8.7.4.01,10.02,7.011,16]henicosa-11,14,16-trien-4-yl]-3-methoxyprop-2-enoate | 932379-39-0 | C27H38N2O8 | 518.607 |
—— | mitragynine pseudoindoxyl | 2035457-43-1 | C23H30N2O5 | 414.502 |
7-羟基帽柱碱 | 7-hydroxymitragynine | 174418-82-7 | C23H30N2O5 | 414.502 |
—— | 10-fluoromitragynine | 918431-17-1 | C23H29FN2O4 | 416.493 |
—— | 10-chloromitragynine | 918431-19-3 | C23H29ClN2O4 | 432.947 |
—— | 10-bromomitragynine | 918431-21-7 | C23H29BrN2O4 | 477.398 |
—— | 10-methoxymitragynine | 918431-25-1 | C24H32N2O5 | 428.528 |
帽柱木碱盐酸盐 | mitragynine | 4098-40-2 | C23H30N2O4 | 398.502 |
Mitragynine (MG) is the most abundant alkaloid component of the psychoactive plant material “kratom”, which according to numerous anecdotal reports shows efficacy in self-medication for pain syndromes, depression, anxiety, and substance use disorders. We have developed a synthetic method for selective functionalization of the unexplored C11 position of the MG scaffold (C6 position in indole numbering) via the use of an indole-ethylene glycol adduct and subsequent iridium-catalyzed borylation. Through this work we discover that C11 represents a key locant for fine-tuning opioid receptor signaling efficacy. 7-Hydroxymitragynine (7OH), the parent compound with low efficacy on par with buprenorphine, is transformed to an even lower efficacy agonist by introducing a fluorine substituent in this position (11-F-7OH), as demonstrated in vitro at both mouse and human mu opioid receptors (mMOR/hMOR) and in vivo in mouse analgesia tests. Low efficacy opioid agonists are of high interest as candidates for generating safer opioid medications with mitigated adverse effects.