scholarly journals The Polyphosphoric Acid-Catalyzed Ring Opening of 4, 5-Epoxy-3-oxo Steroids. IV. The Synthesis of 17α-Hydroxy-4-ethylthiopregn-4-ene-3, 20-dione and Its Analogs

1967 ◽  
Vol 15 (6) ◽  
pp. 887-892 ◽  
Author(s):  
Munemitsu Tomoeda ◽  
Akihiko Ishida ◽  
Toshitaka Koga
Keyword(s):  
Ring Opening ◽  
Polyphosphoric Acid ◽  
Acid Catalyzed

scholarly journals The Polyphosphoric Acid-Catalyzed Ring Opening of 4, 5-Epoxy-3-oxo Steroids : The Synthesis of 4-Alkylthio-4-en-3-oxo Steroids and their Analogs

1964 ◽  
Vol 12 (3) ◽  
pp. 383-385 ◽  
Author(s):  
Munemitsu Tomoeda ◽  
Masayuki Ishizaki ◽  
Harumi Kobayashi ◽  
Shoichi Kanatomo ◽  
Toshitaka Koga ◽  
...  
Keyword(s):  
Ring Opening ◽  
Polyphosphoric Acid ◽  
Acid Catalyzed
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