参考文献

McGreal; Niederl; Niederl Journal of the American Chemical Society, 1939 , vol. 61, p. 345 Full Text View citing articles Show Details Niederl Patent: US2374949 , 1940 ; Full Text Show Details Easson et al. Quarterly Journal of Pharmacy and Pharmacology, 1934 , vol. 7, p. 509,510, 511