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苯骈吡喃类钾通道启开剂目前是降压药研究和开发的热点。在合成一系列钾通道启开剂苯骈吡喃化合物的中间体苯骈吡喃酮肟时,我们用2,2-二甲基-6-硝基-2,
Phenanthroline potassium channel opening agent is currently a hot research and development of antihypertensive drugs. In the synthesis of a series of potassium channel opening agent benzopyran pyrazine compounds intermediate benzopyranone oxime, we use 2,2-dimethyl-6-nitro-2,