C - Chemistry – Metallurgy – 07 – D
Patent
C - Chemistry, Metallurgy
07
D
C07D 321/10 (2006.01) C07C 29/132 (2006.01)
Patent
CA 2563931
The invention relates to novel 7,7-disubstituted derivatives of (5<I>H</I>,9<I>H</I>)-6,8-dioxabenzocycloheptene, the preparation methods thereof and the use of same as intermediates in the synthesis of non-steroidal derivatives of vitamin D.
La présente invention concerne de nouveaux dérivés 7,7-disubstitués du (5H,9H)- 6,8-dioxabenzocycloheptène, leurs procédés de préparation et leur utilisation en tant qu'intermédiaires dans la synthèse de dérivés non stéroïdiens de vitamine D.
Pascal Jean-Claude
Terranova Eric
Galderma Research & Development
Galderma Research & Development S.n.c.
Robic
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