摘要:
Azole-aminomethylene bisphosphonic acids and lower alkyl esters and salts thereof, of the following general formula (I), are useful as drugs, e.g. as antiinflammatory and antirheumatic agents.
摘要:
4-substituted-2-azetidinone compounds shown by the general formula and salts thereof. The compounds of this invention have a strong CNS activity and are useful fortreating disturbance of consciousness in schizophrenia and head injury, hypobulia and memory loss. The compounds may be made by reacting an acid or or a reactive derivative thereof with the appropriate amine or a reactive derivative thereof.
摘要:
The present invention relates to 1-substituted silyl-4-oxo-2-azetidine-carboxylic acid lower alkyl esters shown by general formula (I) wherein R represents a lower alkyl group and ⓟ represents a substituted silyl group. These compounds are useful as intermediates for various drug syntheses.
摘要:
Compounds of the following general formula (1) and salts thereof are useful pharmaceuticals having central nervous system activitv: wherein one of R 1 and R 2 represents a substituted lower alkyl group, an azido group, an amino group, a lower acylamino group, a mercapto group or a lower alkylthio group and the other represents a hydrogen group, or both represent a hydrogen atom or a lower alkyl group; R 3 represents a hydrogen atom or a group shown by formula: [wherein X represents
(wherein R 5 represents a hydrogen atom or a lower alkyl group) and Y represents a hydroxy group, a lower alkoxy group, an amino group, a mono- or di-lower alkylamino group]; and R 4 represents a hydrogen atom, a substituted or unsubstituted lower alkyl group or a group shown by formula -CH 2 CO-A [wherein A represents an amino group or a group shown by formula (wherein X and Y are as defined above)]; provided that (a) at least one of R 3 and R 4 is other than a hydrogen atom and (b) when R 1 and R 2 are both hydrogen atoms at least R 4 is other than a hydrogen atom.
摘要:
The invention provides a crystallization procedure for forming novel crystalline N α -[[(S]-4-Oxo-2-Azetidinyl]-Car- bonyll-L-Histidyl-L-Prolinamide dihydrate which is stable at ambient temperature and humidity and so is advantageous for storage, handling and medicament formulation.
摘要:
Azole-aminomethylene bisphosphonic acids and lower alkyl esters and salts thereof, of the following general formula (I), are useful as drugs, e.g. as antiinflammatory and antirheumatic agents.
摘要:
The invention provides a crystallization procedure for forming novel crystalline N α -[[(S]-4-Oxo-2-Azetidinyl]-Car- bonyll-L-Histidyl-L-Prolinamide dihydrate which is stable at ambient temperature and humidity and so is advantageous for storage, handling and medicament formulation.