高考问答w8cf游戏界面显示不全:help me !!!!
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All substances produced in plant cells are not necessarily the result of enzyme-catalyzed
reactions. The alkaloid nitraramine, which contains seven stereogenic centers, is present in
Nitraria schokeri as a racemate. Isolation of a chiral metabolite might be due to spontaneous
nonenzymatic reactions starting from an achiral precursor followed by enzyme-catalyzed
metabolism of one of the enantiomers (Wanner and Koomen, 1995).
reactions. The alkaloid nitraramine, which contains seven stereogenic centers, is present in
Nitraria schokeri as a racemate. Isolation of a chiral metabolite might be due to spontaneous
nonenzymatic reactions starting from an achiral precursor followed by enzyme-catalyzed
metabolism of one of the enantiomers (Wanner and Koomen, 1995).
所有的物质在植物细胞中生产不必然地结果酵素催化的
反应。 包含七 stereogenic 中心的生物碱 nitraramine 是礼物在
如 racemate 的 Nitraria schokeri。 一个 chiral 新陈代谢产物的隔绝可能是适当的到自然的
nonenzymatic 反应从一个被跟随的 achiral 先驱者开始被酵素催化的
enantiomers 之一的新陈代谢.(Wanner 和 Koomen,1995)
所有的物质在植物细胞中生产不必然地结果酵素催化的
反应。 包含七 stereogenic 中心的生物碱 nitraramine 是礼物在
如 racemate 的 Nitraria schokeri。 一个 chiral 新陈代谢产物的隔绝可能是适当的到自然的
nonenzymatic 反应从一个被跟随的 achiral 先驱者开始被酵素催化的
enantiomers 之一的新陈代谢