Abstract:
The invention is a novel series of cyclic amino acids which are useful in the treatment of epilepsy, faintness attacks, neurodegenerative disorders, depression, anxiety, panic, pain, neuropathological disorders, gastrointestinal disorders such as irritable bowel syndrome (IBS), and inflammation, especially arthritis. A pharmaceutical composition containing a compound of the invention as well as methods of preparing the compounds and novel intermediates useful in the preparation of the final compounds are included.
Abstract:
The invention is a novel series of cyclic amino acids which are useful in the treatment of epilepsy, faintness attacks, neurodegenerative disorders, depression, anxiety, panic, pain, neuropathological disorders, gastrointestinal disorders such as irritable bowel syndrome (IBS), and inflammation, especially arthritis. A pharmaceutical composition containing a compound of the invention as well as methods of preparing the compounds and novel intermediates useful in the preparation of the final compounds are included.
Abstract:
PROBLEM TO BE SOLVED: To provide a compound comprising a heterocyclic skeleton, useful as a nonmetallic asymmetric catalyst, capable of performing a highly stereoselective asymmetric conjugate addition reaction of a high yield and a reaction of forming a carbon-nitrogen bond; and to provide a method of producing a compound using the same as an asymmetric catalyst. SOLUTION: There are provided the compound comprising a heterocyclic skeleton represented by formula (I), a tautomer thereof, and their salts. In the formula, R 1 and R 2 each represent an alkyl group, an aryl group or the like; the ring A represents an imidazole ring condensed with an aromatic ring that may contain a substituent, or a pyrimidine-4-one ring condensed with an aromatic ring that may contain a substituent; R 3 and R 4 each represent an alkyl group, a lower alkenyl group, a lower alkynyl group, or an aryl group, provided that R 3 and R 4 together with carbon atoms each binding thereto may form an isocyclic ring that may contain a substituent or a heterocyclic ring that may contain a substituent; and R 5 and R 6 may be the same or different and each represent a hydrogen atom or a lower alkyl group that may contain a substituent. COPYRIGHT: (C)2011,JPO&INPIT
Abstract:
One aspect of the present invention relates to quinine-based and quinidine-based catalysts. Another aspect of the invention relates to a method of preparing a derivatized quinine-based or quinidine-based catalyst comprising 1) reacting quinine or quinidine with base and a compound that has a suitable leaving group, and 2) converting the ring methoxy group to a hydroxy group. Another aspect of the present invention relates to a method of preparing a chiral, non-racemic compound from a prochiral electron-deficient alkene or azo compound or prochiral aldehyde or prochiral ketone, comprising the step of: reacting a prochiral electron-deficient alkene or azo compound or prochiral aldehyde or prochiral ketone with a nucleophile in the presence of a catalyst; thereby producing a chiral, non-racemic compound; wherein said catalyst is a derivatized quinine or quinidine. Another aspect of the present invention relates to a method of kinetic resolution, comprising the step of: reacting racemic chiral alkene with a nucleophile in the presence of a derivatized quinine or quinidine.