Novel 7,7-disubstituted derivatives of...

C - Chemistry – Metallurgy – 07 – D

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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.

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