四氢吡喃-4-醇 、 ethyl 2-(hydroxyimino)-3-oxybutyrate 以to give the title compound as a colourless liquid (1.69 g, 37%)的产率得到Ethyl (Z)-2-(tetrahydro-4H-pyran-4-yloxyimino)-3-oxobutyrate
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Aminothiazole substituted penicillins and antibacterial compositions