BASE-INDUCED CYCLIZATION OF (2R,3R)- AND (2S,3R)-N-2,4-DIMETHOXYBENZYL-N-BIS(ETHOXYCARBONYL)METHYL-2-BROMO-3-HYDROXYBUTYLAMIDE

DOI: 10.1246/cl.1983.169

Source and publish data:

Chemistry Letters p. 169 - 172 (1983)

Update date:2022-08-05

Topics:

Authors:

Shiozaki, Masao

Ishida, Noboru

Hiraoka, Tetsuo

Maruyama, Hiroshi

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Article abstract of DOI:10.1246/cl.1983.169

Reaction of (2R,3R)-N-2,4-dimethoxybenzyl-N-bis(ethoxycarbonyl)methyl-2-bromo-3-hydroxybutylamide (6) with DBU yielded bicyclic β-lactam 7 by a direct cyclization, and its diastereomer 8 and unexpected γ-lactam 9 by another non-direct cyclization.Also (2S

Full text of DOI:10.1246/cl.1983.169

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