Spirolactams and their synthesis

C - Chemistry – Metallurgy – 07 – D

Patent

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C07D 205/12 (2006.01)

Patent

CA 2566417

New spirolactams of formula (I) having a cycloexadienone moiety which are highly stable due to pi interactions between the W group and the dienone moiety. They are useful as UV absorbers and as intermediates for the synthesis of active biomolecules.

L'invention concerne de nouveaux spirolactames de formule (I) présentant un fragment cycloexadiénone. Ces spirolactames sont hautement stables du fait des interactions pi entre le groupe W et le fragment diénone. Ils sont utiles comme absorbeurs d'UV ou comme intermédiaires pour la synthèse de biomolécules actives.

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