参考文献
Ciba
Patent: DE758807 , 1935 ;
DRP/DRBP Org.Chem.
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Ciba Pharm. Prod. Inc.
Patent: US2308833 , 1936 ;
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Butenandt; Hanisch
Hoppe-Seyler's Zeitschrift fuer Physiologische Chemie, 1935 , vol. 237, p. 89,95
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Ruzicka; Wettstein
Helvetica Chimica Acta, 1935 , vol. 18, p. 1264,1273
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Ciba
Patent: CH210762 , 1935 ;
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Ciba
Patent: US2143453 , 1937 ;
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Schering-Kahlbaum A.G.
Patent: GB464396 , 1935 ;