作者:Dean V. Johnson、Ulfried Felfer、Herfried Griengl
DOI:10.1016/s0040-4020(99)01024-8
日期:2000.1
A chemoenzymatic access to d- or l-sphingosines is presented comprising of a total synthesis of the l-threo-isomer and formal syntheses of the other three isomers. Key to the development of a general synthetic strategy has been the use of enantiocomplementary hydroxynitrile lyases (Hnls) to yield an enantiomeric pair of starting materials. The (S)-Hnl from Hevea brasiliensis has been used to prepare
提供了对d-或l-鞘氨醇的化学酶促途径,包括l-苏式-异构体的全合成和其他三个异构体的形式合成。发展一般合成策略的关键是使用对映体互补的羟腈裂解酶(Hnls)来产生一对对映体原料。来自巴西橡胶树的(S)-Hnl已被用于分14步制备l-苏式-神经鞘氨醇,总产率为12%。扁桃的(R)-Hnl的正式应用可以合成d-苏式和d-赤型-鞘氨醇。