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    1,3-diacetyl-2,4-dicyano-1,2,3,4-tetrahydroquinazoline
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    2,4-dicyano-1,3-diethoxycarbonyl-1,2,3,4-tetrahydroquinazoline
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    ethyl 4-cyano-4H-quinazoline-3-carboxylate
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    4-氯喹唑啉
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    quinazolin-4-yl-acetic acid ethyl ester
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