Stereodivergent synthesis of all diastereomers of 4-aminoheptane-3,5-diol from (L)-serine
作者:JoséM. Andrés、Rafael Pedrosa
DOI:10.1016/s0040-4020(98)00232-4
日期:1998.5
The synthesis of the two diasteromeric meso forms of 4-amino-3,5-heptanediol (3R,4r,5S)-1a and (3S,4s,5R)-1b and the two pseudo C2-symmetric enantiomers (3S,5S)-1c and (3R,5R)-ent-1c is described by stereocontrolled ethylmagnesium bromide or diethylzinc addition to diastereomeric α-amino-β-hydroxy pentanal derivatives 9 and 13. These derivatives were prepared from (2S)-N,N-dibenzyl-O-TBS-serinal 2
的两个非对映体的合成内消旋-4-氨基-3,5-庚二醇的形式的(3R,4R,5S) - 1A和(3S,4S,5R) - 1B和两个伪Ç 2 -对称的对映体(3S,5S )-1c和(3R,5R)-ent - 1c由立体控制的乙基溴化镁或二乙基锌加到非对映体α-氨基-β-羟基戊醛衍生物9和13中来描述。这些衍生物是从(2S)-N,N-二苄基-O-TBS-丝氨酸2制备的,而后者又是从(L)-丝氨酸获得的。