R " is a replaceable function, e. g. acetoxy, methoxy, their acyloxy and alkoxy homologs or halo.
是取,乙氧、甲氧及它们的环氧和烷氧系物或卤。
R " is a replaceable function, e. g. acetoxy, methoxy, their acyloxy and alkoxy homologs or halo.
是取,乙氧、甲氧及它们的环氧和烷氧系物或卤。
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