参考文献
Am.Cyanamid Co.
Patent: US2410793 , 1940 ;
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Jensen; Falkenberg
Dansk Tidsskrift for Farmaci, 1942 , vol. 16, p. 141,150
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CIBA
Patent: CH230861 , 1938 ;
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Am.Cyanamid Co.
Patent: US2392156 , 1944 ;
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Roblin et al.
Journal of the American Chemical Society, 1940 , vol. 62, p. 2002,2003
Journal of the American Chemical Society, 1942 , vol. 64, p. 567,568