Process for the preparation of 2,6-disubstituted...

C - Chemistry – Metallurgy – 07 – D

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C07D 333/54 (2006.01) C07C 323/22 (2006.01) C07D 333/62 (2006.01)

Patent

CA 2261317

Benzothiophene compounds of general formula (I), wherein R1 is lower alkoxy; and R2 is halogeno, lower alkyl, or cycloalkyl or cycloalkenyl optionally substituted with lower alkyl, hydroxyl, acyloxy or oxo, which are intermediates useful for the synthesis of 2-substituted-3-(4-substituted benzoyl)-6-hydroxybenzo[b]thiophene derivatives having antiestrogenic activity, can be prepared industrially advantageously by subjecting the compounds of general formula (II) to ring-closing reaction. The compounds of general formula (II) are novel ones useful as the intermediate for the process of the present invention.

Composés de benzothiophène de la formule générale (I), dans laquelle R?1¿ est alcoxy inférieur et R?2¿ est halogéno, alkyle inférieur ou cycloalkyle ou cycloalcényle éventuellement substitué par alkyle inférieur, hydroxyle, acyloxy ou oxo, qui sont des intermédiaires utiles pour la synthèse de dérivés de 3-(benzoyl 4-substitué)-6-hydroxybenzo[b]thiophène 2-substitué à activité anti-oestrogénique et qui peuvent être avantageusement produits à l'échelle industrielle au moyen d'une réaction de fermeture de cycle appliquée aux composés de la formule générale (II). Les composés de formule générale (II) sont nouveaux et utiles en tant qu'intermédiaires dans le procédé selon la présente invention.

LandOfFree

Say what you really think

Search LandOfFree.com for Canadian inventors and patents. Rate them and share your experience with other people.

Rating

Process for the preparation of 2,6-disubstituted... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for the preparation of 2,6-disubstituted..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for the preparation of 2,6-disubstituted... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-1920726

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.