Add time:08/22/2019         Source:sciencedirect.com

A facile synthesis of (−)-8a-epi-swainsonine 2 and 1,4-dideoxy-1,4-imino-l-ribitol (LRB) 4 has been achieved by using the versatile building block 3, which was available from cheap d-glutamic acid. The new forming stereogenic center in synthesis of 2 was constructed by highly selective reduction of the ketone 13 with Li(t-BuO)3AlH in THF (dr=95:5).

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