Intramolecular amino delivery reactions for the synthesis of valienamine and analogues
摘要:
Iodocyclization and [3,3] sigmatropic rearrangement reactions of N-substituted carbonimidothioates are used to prepare valienamine (1), 7-nor-valienamine (8), and the valienamine-based pseudo-disaccharide 12.
Total Synthesis of (+)-Lycoricidine and Conduramine B-1, <i>ent</i>-C-1, C-4, D-1, <i>ent</i>-F-1, and <i>ent</i>-F-4, and Formal Synthesis of (−)-Laminitol: a <i>C</i><sub>2</sub>-Symmetric Chiral-Pool-Based Flexible Strategy
作者:Hong-Jay Lo、Yuan-Kang Chang、Bakthavachalam Ananthan、Yu-Hsuan Lih、Kuang-Shun Liu、Tu-Hsin Yan
DOI:10.1021/acs.joc.9b01221
日期:2019.8.16
aminocyclitol natural products from inexpensive C2-symmetric l-tartaric acid was developed. The pivotal epoxide was used as a commonintermediate to accomplish eight diverse target molecules in six to eleven steps. Various allyl-amine-type conduramines were synthesized in a diastereoselective manner. Heck arylation was explored to construct a phenanthridone ring in a concise synthesis of (+)-lycoricidine. In