Add time:09/06/2019         Source:sciencedirect.com

2-Oxo-3R,4S,5S,6S-tetraethoxyazepane was conveniently synthesized from d-glucono-1, 5-lactone with a yield of 10% overall. The key step of synthetic route-reductive 1,6-cyclization was completed efficiently by using Ph3P to give the expected lactam.

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