Process for the production of opiates

Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C546S043000

Reexamination Certificate

active

06949645

ABSTRACT:
A morphine component, e.g., a concentrate of poppy straw, is converted into codeine in high yield and high purity and in a highly controlled manner. The conversion process involves the following steps: (a) providing a solution or suspension of a morphine component in an inert solvent or a mixture of solvents; (b) methylating the resultant solution or suspension with a methylating agent in the presence of an alkaline ingredient; and (c) recovering the resultant codeine as the free base or as a salt.

REFERENCES:
patent: 4764615 (1988-08-01), Ayyangar et al.
patent: 5981750 (1999-11-01), Corcoran et al.
patent: 6579985 (2003-06-01), Hill
patent: 39887 (1887-06-01), None
patent: 247180 (1912-05-01), None
patent: 418391 (1926-09-01), None
Brochmann-Hannsen, E. et al., “Biosynthetic conversion of Thebaine to Codeine and Role of Codeine Methyl Ether,”J. Pharm. Sci., 1967, vol. 56, pp. 1207-1208.
Carlsen et al., “o-Methylation With Phenyltrimethylammonium Chloride,”Acta Chemica Scandinavica, 1997, vol. 51, pp. 343-344.
Debska, W. et al, “Determination of Codeine Methyl Ether in Commercial Codeine,”Chem. Anal.(Warsaw), 1979, vol. 24, pp. 407-413.
Grimaux, M., “Chime Organique.—Sur La Transformation De La Morphine En Codeine Et An Bases Homologues,”C.R. Acad. Sci., 1881, vol. 92, pp. 1140-1143.
Heumann, W., “The Manufacture of Codeine From Morphine,”Bull. Narcotics, 1958, vol. 3, pp. 15-17.
Hughes, E.D. et al., Influence of Poles and Polar Linkings on the Course Pursued by Elimination Reactions. Part XIII. Decompositions of Some Quaternary Ammonium Salts Containing the Methyl, Benzyl, and Benzhydryl Groups,J. Chem. Soc.(London), 1933, vol. 1, pp. 69-75.
Ikonovski, K, Preparation of Dihydrocodeine by Methylation of Dihydromorphine Obtained From Some By-products in the Manufacture of Opiates, 1982, vol. 32, pp. 241-246.
Ikonovski, K., “Preparation of Codeine by Methylation of Morphine With Phenyltrimethylammonium Methoxide,”Acta, Pharm. Jugoslav, 1973, vol. 23, pp. 169-171.
Mannich, C., “Ueber Methylderivate des Morphins,”Arch. Pharm., 1916, vol. 254, pp. 349-363.
Pfeifer, S., “Über die Verunreinigung von Kodein mit Methylkodein,”Pharmazie, 1963, vol. 18, pp. 409-410.
Phillips, M.A., Methylation of Morphine,Chemist Druggist, 1965, vol. 183, p. 965.
Proksa, B. et al., “Identification and Determination of By-products of the Codeine Synthesie,”Chem. Zvesti., 1983, vol. 37, No. 6, pp. 837-842.
Rodionov, W., “L'importance des Ethers Alcoyliques des Acides Sulfoaromatiquea Pour L'alcoylation des Composes Organiques,” (Bull. Soc. Chim.(France), 1926, vol. 4, No. 39, pp. 305-325.
Small, L. et al.,—Chemistry of the Opium Alkaloids, 1932, US Gov. Printing Office, p. 175-205.
Von Pechmann, H.,Ueber Diazomethan, 1894, vol. 27, pp. 1888-1895.
White, P.T. et al., “The Poppy,”National Geographic, 1985, vol. 167, pp. 142-188.

LandOfFree

Say what you really think

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

Rating

Process for the production of opiates 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 production of opiates, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for the production of opiates will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3436923

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