| 摘要 |
NEW MATERIAL:A 1H-oxazo[5,4-f]pyrroloquinoline-2,8,10-tricarboxylic acid triester shown by the formula (R is 2-10C alkyl, allyl or benzyl). EXAMPLE:1H-Oxazo[5,4-f]pyrroloquinoline-2,8,10-tricarboxylic acid triallyl ester. USE:Useful for medicines and agricultural chemicals as a physiologically active substance. PREPARATION:4,5-Dihydro-4,5-dioxo-1H-pyrrolo[2,3-f]quinoline-2,7,9-tri carboxylic acid triester is reacted with methylamine or glycine and further ammonia and formalin under an acidic condition (preferably pH 2-5). |
