Total synthesis and biological evaluation of methylgerambullone
摘要:
First total synthesis of methylgerambullone (MGB, 1) isolated from Glycosmis angustifolia was completed via a convergent route. The effect of MGB on the contractile responses of the isolated guinea-pig ileum induced by acetylcholine was investigated. As a result, it showed a potent relaxation rate (78.66 +/- 4.30% at 100 mg/L) in a concentration-dependent manner on longitudinal smooth muscle contraction of isolated guinea-pig ileum induced by 1 mu M acetylcholine. (C) 2009 Elsevier Ltd. All rights reserved.
Collective Asymmetric Total Syntheses of Marine Decahydroquinoline Alkaloid Lepadins A–E, H, and <i>ent</i>-I
作者:Foqing Ma、Chenxi He、Eryu Wang、Rongbiao Tong
DOI:10.1021/acs.orglett.1c02435
日期:2021.8.20
Lepadins are cis-fused decahydroquinoline (DHQ) marine alkaloids that have shown diverse biological activities and have attracted extensive synthetic interest. A new collective synthetic strategy is reported that features a green chemistry approach for constructing the common cis-fused DHQ core, which is achieved through green oxone-halide oxidation for both the aza-Achmatowicz rearrangement and the