Intermediates for the preparation of tricyclic dihydropyrano...

Details Intermediates for the preparation of tricyclic dihydropyrano... Intermediates for the preparation of tricyclic dihydropyrano...

C - Chemistry, Metallurgy

07

D

C07D 471/04 (2006.01) C07D 493/14 (2006.01)

Patent

CA 2549860

The invention relates to compounds of the formula (I), in which R1, R2, R3, Arom and PG have the meanings as indicated in the description. These compounds are valuable intermediates for the preparation of pharmaceutically active compounds.

L'invention concerne des composés de formule (I), dans laquelle R1, R2, R3, Arom et PG ont les significations indiquées dans la description. Ces composés sont des intermédiaires précieux pour la préparation de composés pharmacologiquement actifs.

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