Organic compounds -- part of the class 532-570 series – Organic compounds – Nitrogen attached directly or indirectly to the purine ring...
Reexamination Certificate
2005-06-21
2005-06-21
Bernhardt, Emily (Department: 1624)
Organic compounds -- part of the class 532-570 series
Organic compounds
Nitrogen attached directly or indirectly to the purine ring...
Reexamination Certificate
active
06908999
ABSTRACT:
The invention refers to a novel process for the preparation of {2-[-(α-phenyl-p-chlorobenzyl)piperazin-1-yl]ethoxy}acetic acid, which comprises hydrolyzing an N,N-disubstituted {2-[-(α-phenyl-p-chlorobenzyl)piperazin-1-yl]ethoxy}acetamide, wherein said substituents are selected from alkyl groups having 1 to 4 carbon atoms optionally substituted by a phenyl group, alkenyl groups having 2 to 4 carbon atoms or cyclohexyl groups, or the substituents together with the adjacent nitrogen atom of the acetoamido group, form a morpholino group.
REFERENCES:
patent: 4525358 (1985-06-01), Baltes et al.
patent: 5347060 (1994-09-01), Hellring et al.
patent: 6046332 (2000-04-01), Tao et al.
patent: 6140501 (2000-10-01), Duchene et al.
patent: 0 058 146 (1982-08-01), None
patent: WO-97/37982 (1997-10-01), None
Advanced Organic Chemistry (2nd. Ed.) by Jerry March, p. 353 (1977).
A Novel Synthesis of the Enantiomers of an Antihystamine Drug . . . by Opalka et al (SYNTHESIS vol. 7 1995).
Bartha Ferenc
Clementis Gyōrgy
Nagy Kalman
Nemeth Norbert
Reiter Jozsef
Bernhardt Emily
Dubno Herbert
Egis Gyogyszergyar Rt.
Myers Jonathan
LandOfFree
Process for the preparation of... 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..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for the preparation of... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3462138