Process for producing optically active...

C - Chemistry – Metallurgy – 12 – P

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C12P 13/12 (2006.01) C07C 319/02 (2006.01) C07C 319/06 (2006.01) C07C 319/14 (2006.01) C07C 323/58 (2006.01) C07D 233/76 (2006.01) C12P 17/04 (2006.01) C12P 17/10 (2006.01) C12P 41/00 (2006.01)

Patent

CA 2486350

It is intended to provide a process for conveniently producing on an industrial scale an optically active .alpha.-methylcysteine derivative or its salt in the form of an L- or D-compound, which is useful as an intermediate of a drug, etc., from a less expensive and easily available material. Namely, a process for producing an optically active .alpha.-methylcysteine derivative or its salt in the form of an L- or D-compound which comprises D-selectively cyclizing a racemic N-carbamoyl-.alpha.-methylcysteine derivative or its salt with the use of hydantoinase to give a D-5-methyl-5-thiomethylhydantoin derivative or its salt and N-carbamoyl-.alpha.-methyl-L-cysteine derivative or its salt, and then deblocking and hydrolyzing the amino group and the sulfur atom of each product.

La présente invention a trait à un procédé permettant la production simple à l'échelle industrielle d'un dérivé d'.alpha.-méthylcystéine optiquement actif ou de son sel sous la forme d'un composé lévogyre ou d'un composé dextrogyre, utile en tant qu'intermédiaire d'un médicament et analogue à partir d'un matériau moins coûteux et facile à se procurer. Notamment, l'invention a trait à un procédé permettant la production d'un dérivé d'.alpha.-méthylcystéine optiquement actif ou de son sel sous la forme d'un composé lévogyre ou d'un composé dextrogyre qui comporte la cyclisation sélective sous forme dextrogyre d'un dérivé racémique de N-carbamoyle-.alpha.-méthylcystéine ou de son sel avec l'utilisation d'une hydantoinase pour obtenir un dérivé de 5-méthyl-5-thiomethylhydantoine dextrogyre ou son sel et un dérivé de N-carbamoyle-.alpha.-méthylcystéine lévogyre ou son sel, suivie du déblocage et de l'hydrolyse du groupe aminé et de l'atome de soufre de chaque produit.

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

Rate now

     

Profile ID: LFCA-PAI-O-1540623

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