Tricyclic derivatives, process for preparing the same, their...

C - Chemistry – Metallurgy – 07 – C

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C07C 49/747 (2006.01) C07C 45/56 (2006.01) C07C 45/63 (2006.01) C07C 49/755 (2006.01) C07C 217/74 (2006.01) C07C 309/73 (2006.01) C07C 323/41 (2006.01) C07D 209/48 (2006.01) C07F 5/04 (2006.01)

Patent

CA 2170806

The invention relates to a compound (I) (see formula I) wherein R1 and R2 is alkyl and R3 is hydrogen or an ASO2 group, A being particularly alkyl or optionally substituted phenyl, or R2 and R3 represent hydrogen or alkyl and R1 represents an ASO2 group, or R1, R2 and R3 represent hydrogen or alkyl, or R1 represents an ASO2 group or hydrogen and R2 and R3 form a protective group, or R3 represents an ASO2 group and R1 and R2 form a protective group, or R1 represents hydrogen and R2 and R3 are alkyl or form a protective group. The invention also relates to a process for the preparation of racemic and optically active colchicine and thiocolchicine and of analogs or derivatives, as well as intermediates.

L'invention concerne un composé (I) (voir formule I) où R1 et R2 représente un alkyle et R3 représente un hydrogène ou un groupement ASO2, A étant notamment un alkyle ou un phényle éventuellement substitué, ou R2 et R3 représente un hydrogène ou un alkyle et R1 représente un groupement ASO2, ou R1, R2 et R3 représente un hydrogène ou un alkyle, ou R1 représente un groupement ASO2 ou un hydrogène et R2 et R3 forment un groupement protecteur, ou R3 représente un groupement ASO2 et R1 et R2 forment un groupement protecteur, ou R1 représente un hydrogène et R2 et R3 représente un alkyle ou forment un groupement protecteur. L'invention concerne également un procédé de préparation de la colchicine et de la thiocolchicine racémiques et optiquement actives et d'analogues ou dérivés, ainsi que des intermédiaires.

LandOfFree

Say what you really think

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

Rating

Tricyclic derivatives, process for preparing the same, their... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Tricyclic derivatives, process for preparing the same, their..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Tricyclic derivatives, process for preparing the same, their... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-1382204

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