Organic compounds -- part of the class 532-570 series – Organic compounds – Carboxylic acids and salts thereof
Patent
1994-04-07
1996-02-13
Brust, Joseph Paul
Organic compounds -- part of the class 532-570 series
Organic compounds
Carboxylic acids and salts thereof
549328, 560227, 558 48, 558 50, 558444, C07C22718, C07C25334, C07D30512
Patent
active
054912601
ABSTRACT:
A Process for Preparing L-(-)-carnitine is disclosed which comprises acylating D-(+)-carnitinenitrile or D-(+)-carnitineamide to their respective acyl derivatives which, via acid hydrolysis, yield D-(+)-carnitine which is converted to the lactone of L-(-)-carnitine. The lactone when in base yields L-(-)-carnitine.
REFERENCES:
patent: 4254053 (1981-03-01), deWitt et al.
patent: 5041643 (1991-08-01), Tinti et al.
patent: 5200526 (1993-04-01), Arnold et al.
patent: 5412113 (1995-05-01), Giannessi et al.
Abstract only considered of JP62044189, Seitetsu Chem. Ind., Date Feb. 1987.
Abstract only considered of JP61271996, Seitetsu Chem. Ind., Date Dec. 1986.
Abstract only considered of JP61271995, Seitetsu Chem. Ind., Date Dec. 1986.
Abstract only considered of JP61234794, Seitetsu Chem. Ind. Date Oct. 1986.
Abstract only considered of JP61234788, Seitetsu Chem. Ind. Date Oct. 1986.
Abstract only considered of JP61067494, Seitetsu Chem. Ind., Date Apr. 1986.
Claims only considered of JP275689, Kabushiki, et al. Date Nov. 1987.
Hackh's Chemical Dictionary-4th Ed.-1969, pp. 437, 514, 645, 648.
Kirk-Othmer, Encyclopedia of Chemical Technology, 3rd ed., vol. 19 (1982), pp. 521-531.
Castagnani Roberto
De Angelis Francesco
De Witt Paolo
Giannessi Fabio
Misiti Domenico
Brust Joseph Paul
Sigma-Tau Industrie Farmaceutiche Riunite S.p.A.
LandOfFree
Process for manufacturing L-(-)-carnitine from derivatives havin 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 manufacturing L-(-)-carnitine from derivatives havin, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for manufacturing L-(-)-carnitine from derivatives havin will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-241747