参考文献
Kano; Makisumi
Shionogi Kenkyusho Nenpo, 1957 , # 7 p. 511,514
Chem.Abstr., 1958 , p. 10094
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Searle and Co.
Patent: US2694705 , 1951 ;
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Dahlbom; Ekstrand
Acta Chemica Scandinavica (1947-1973), 1951 , vol. 5, p. 102,104