A concise route to d-erythro-sphingosine from N-Boc-l-serine derivatives via sulfoxide or sulfone intermediates
摘要:
Sulfoxide and sulfone intermediates 7 and 15, respectively, were employed to synthesize synthons 3 and 4, which are readily converted to the naturally occurring (2S,3R,4(E))-sphingosine 1 and (2S,3R)-sphinganine 2. (C) 2002 Elsevier Science Ltd. All rights reserved.
作者:Derek H.R. Barton、Dominique Bridon、Isabel Fernandaz-Picot、Samir Z. Zard
DOI:10.1016/s0040-4020(01)86878-2
日期:1987.1
Esters (mixed anhydrides) derived from aliphatic or alicyclic carboxylic acids (RCO2H) and thiohydroxamic acids or undergo a thermally or photochemically induced radical chain reaction to give sulphides with loss of carbon dioxide. On irradiation at low-temperature however, the chain reaction is essentially supressed. Under these conditions moderate to good yields of dimers R-R are obtained from primary