中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
叔丁氧羰基-11-氨基十一烷酸 | 11-(tert-butoxycarbonylamino)undecanoic acid | 10436-25-6 | C16H31NO4 | 301.426 |
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
—— | tert-butyl N-(9-oxononyl)carbamate | 133728-27-5 | C14H27NO3 | 257.373 |
(R)-Harmonine was synthesised in 15 % overall yield via a six-step sequence exploiting a Z-selective cross-metathesis reaction as its centrepiece. By this strategy, the cis-olefin present in the target could be installed exclusively. The use of an alcohol and an ester as the amine precursors was crucial for isolating the cross-metathesis product from the self-metathesis products. This method was also used to prepare two novel analogues of harmonine.
The synthesis of harmonine, a defense alkaloid from the harlequin ladybird is reported by three different routes.