Menetelmä uusien alkanofenonien valmistamiseksi

• Main Authors: VON SPRECHER,ANDREAS, BECK,ANDREAS
• Format: Patent
• Language: Finnish; Swedish
• Published: 25.08.1995
• Edition: 6
• Subjects: CHEMISTRY; HETEROCYCLIC COMPOUNDS; HUMAN NECESSITIES; HYGIENE; MEDICAL OR VETERINARY SCIENCE; METALLURGY; ORGANIC CHEMISTRY; PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES; SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS ORMEDICINAL PREPARATIONS

Substituted alkanophenones of the general formula in which R1 denotes optionally fluorinated lower alkyl, R2 represents hydrogen, optionally fluorinated lower alkyl or lower alkenyl, X denotes lower alkylene, oxy, thio or a direct bond, alk represents lower alkylene, n stands for 1 or 2, R3 denotes phenyl which is unsubstituted or substituted by optionally fluorinated lower alkyl, etherified or esterified hydroxyl, optionally lower alkylated amino and/or optionally esterified or amidated carboxyl or denotes lower alkyl which is optionally fluorinated or substituted by optionally esterified or amidated carboxyl, R4 represents optionally esterified or amidated carboxyl or 5-tetrazolyl and R5 stands for hydrogen or lower alkyl, have leukotriene-antagonist properties and can be used as antiallergic pharmaceutical active compounds. The process for their preparation is characterised in that an epoxide of the formula in which R1, R2, X, alk, n and R3 have the above meanings, is reacted with a thiol of the formula in which R4 and R5 have the above meanings, or a salt thereof and, if desired, a compound obtainable according to the process is converted into another compound of the formula I, a stereoisomer mixture obtainable according to the process is resolved into the components and/or a free compound obtainable according to the process is converted into a salt or a salt obtainable according to the process is converted into the free compound or into another salt.