also be employed. Its preparation from glycine, methylamine, isobutyraldehyde, and (Boc)2O, and the resolution through the bis-O,O′-(4-toluyl)tartrate salt 20 are described. In two functional tests (rat neocortical slice and frog hemisected spinal cord preparation) the (S)-enantiomer 7a (SDZ EAB 515) is shown to be a very potent, selective competitive NMDA antagonist.
合成标题化合物7a和ent - 7a的对映异构体以及取代的类似物。的绝对构型图7a是从(的推导叔丁基-2-叔丁基)-3-甲基-4-氧代
咪唑烷-1-
羧酸叔丁酯(15)和从所述反中间的构型17A继而被分配基于1 H-NMR核Overhauser效应(NOE)的测量。2-异丙基取代的类似物21代替15也可以使用。描述了其由甘
氨酸,
甲胺,
异丁醛和(Boc)2 O制备以及通过双-O,O '-(4-
甲苯基)
酒石酸盐20的拆分。在两个功能测试(大鼠新皮层切片和青蛙半截断脊髓制备)中,(S)-对映异构体7a(
SDZ
EAB 515)被证明是一种非常有效的选择性竞争性N
MDA拮抗剂。