Preparation process of new 11 .beta.-substituted steroid...

C - Chemistry – Metallurgy – 07 – J

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C07J 41/00 (2006.01) C07J 7/00 (2006.01) C07J 21/00 (2006.01) C07J 43/00 (2006.01) C07J 51/00 (2006.01) C07J 63/00 (2006.01) C07J 71/00 (2006.01)

Patent

CA 1193246

PRECIS DE LA DIVULGATION: L'invention concerne un procédé pour préparer des composés de formule (I'): (I') Image où R1 est un radical organique ayant de 1 à 18 atomes de carbone et contenant un azote, un phosphore ou un silicium, R2 un radical hydrocarboné ayant de 1 à 8 atomes de carbone, X le reste d'un cycle pentagonal ou hexagonal éventuellement substitué et insaturé, C=A un groupe oxo libre ou bloqué ou un groupe Image ,C=N-OH, C=NO-alc3 ou CH2 (alc1, alc2, alc3 = alcoyle (1-8c) ou aralcoyle (7-15c) ) et B et C forment un double liaison ou un pont époxyde. Les composés de formule (I') ainsi obtenus sont doués notamment de propriétés antiglucocorticoïdes.

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