硝基甲烷 、 tert-butyl (2S,5S,6S)-5-[2-[(4R,5S)-2,2-dimethyl-5-(2-oxoethyl)-1,3-dioxolan-4-yl]ethyl]-2-methyl-6-[[(2S)-1-[[(2S)-3-methyl-1-[(2-methylpropan-2-yl)oxy]-1-oxobutan-2-yl]amino]-1-oxopropan-2-yl]carbamoyl]-3-oxopiperazine-1-carboxylate 在
(1R,2R)-(-)-N,N'-bis(3,5-di-tert-butylsalicydene)-1,2-cyclohexanediaminocobalt(II) 作用下,
以
二氯甲烷 为溶剂,
反应 46.0h,
生成
(3S,5S,6S,2'S,4'S,5'R)-(-)-4-(tert-butoxycarbonyl)-5-(O1-tert-butyl-L-valinyl-L-alanyl)carbonyl-6-[2'-hydroxy-4',5'-O-isopropylidene-1'-nitrohexane-7'-yl]-3-methyl-2-piperazinone