| 摘要 |
4H[1]benzopyrano[3,4-d]isoxazole derivatives substituted in the 3-position which are useful as pharmaceutical agents, especially anti-inflammatory agents. They are also useful in preparing structurally related pharmaceutical compounds of known utility. In addition, they are useful as intermediates in the preparation of wood preservatives, mothproofing agents and pickling inhibitors. Representative of the compounds disclosed are 4H[1]benzopyrano [3,4-d]isoxazole-3-carboxamide, ethyl 4H[1]benzopyrano[3,4-d]isoxazole-3-carboxylate and N-methyl-4H[1]benzopyrano[3,4-d]isoxazole-3-thiocarboxamide.
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