Abstract: The present invention relates to an improved process for the preparation of substituted 2-(4-carbonylmethoxy-optionally 2,5-disubstituted-phenyl-acetaldehydes, in particular 2-(4-alkoxycarbonylmethoxy-optionally 2,5-disubstituted-phenyl)-acetaldehydes and their use in the synthesis of optionally substituted 2-[4-[2-[[-2-hydroxy-2-(4-hydroxyphenyl)-1-methylethyl]-amino]ethyl]-optionally 2,5-disubstituted-phenoxy]acetic acid derivatives or the salts thereof, which may be used as pharmaceutically active substances.

Abstract: Disclosed is an improved multi-step process for preparing a compound of Formula I: wherein R1 to R3 are as defined herein. The compounds of formula I inhibit the binding of human intercellular adhesion molecules to the Leukointegrins. As a result, these compounds are useful in the treatment of inflammatory and immune cell-mediated diseases.

Abstract: The present invention relates to an improved process for the preparation of substituted 2-(4-carbonylmethoxy-optionally 2,5-disubstituted-phenyl)-acetaldehydes, in particular 2-(4-alkoxycarbonylmethoxy-optionally 2,5-disubstituted-phenyl)-acetaldehydes and their use in the synthesis of optionally substituted 2-[4-[2-[[-2-hydroxy-2-(4-hydroxyphenyl)-1-methylethyl]-amino]ethyl]-optionally 2,5-disubstituted-phenoxy]acetic acid derivatives or the salts thereof, which may be used as pharmaceutically active substances.

Abstract: Disclosed is a process for preparing a macrocyclic compound of the formula (I): which is carried out using an intermediate of the formula (II): wherein W, R1 through R4, D, A and R12 are as defined herein. The compounds of formula (I) are potent active agents for the treatment of hepatitis C virus (HCV) infection.

Abstract: Disclosed is a process for preparing a macrocyclic compound of the formula (I): which is carried out using an intermediate of the formula (II): wherein W, R1 through R4, D, A and R12 are as defined herein. The compounds of formula (I) are potent active agents for the treatment of hepatitis C virus (HCV) infection.

Abstract: The invention relates to a process for the preparation of substituted pyrimidines of formula I, wherein R1, R2, R3, R4 and X are as defined in claim 1, which comprises reacting an amidine of formula II, or a salt thereof, with a 3,3-disubstituted vinylcarbonyl compound of formula III wherein L represent a halogen atom or a group of formula —X—R2, (a) in an inert solvent, in the presence of a base and a compound of formula IV H—X—R2  (IV) in the event that L represent a halogen atom, or (b) in an inert solvent and in the presence of a base, in the event that L represents a group of formula —X—R2.

Abstract: The invention relates to a process for the preparation of substituted pyrimidines of formula I, 1

Abstract: An improved process for the preparation of a 1,1,1-trifluoro-2-aminoalkane of formula I wherein R1 represents an optionally substituted alkyl group; which comprises hydrogenating the corresponding oxime of formula II wherein R1 has the meaning given above and the winding line indicates that the hydroxy group may be in the (E)- or (Z)-position with respect to the trifluoromethyl group, in the presence of Raney nickel and a diluent; the improvement wherein is, that said reaction is carried out in a diluent selected from an alkanol, a cyclic ether and an aromatic hydrocarbon.

Abstract: The invention relates to a process for the preparation of substituted pyrimidines of formula I, wherein R1, R2, R3, R4 and X are as defined in claim 1, which comprises reacting an amidine of formula II, or a salt thereof, with a 3,3-disubstituted vinylcarbonyl compound of formula III wherein L represent a halogen atom or a group of formula —X—R2, (a) in an inert solvent, in the presence of a base and a compound of formula IV H—X—R2  (IV) in the event that L represent a halogen atom, or (b) in an inert solvent and in the presence of a base, in the event that L represents a group of formula —X—R2.

Abstract: A compound of general formula (I) wherein: A represents a group of general formula (1) or (2) in which each X independently represents a halogen atom or an optionally substituted alkyl, cycloalkyl, alkoxy, aryl or aryloxy group, or an alkenyloxy, alkynyloxy, alkylthio, haloalkylthio, alkenylthio, alkynylthio, alkylsulphinyl, alkylsulphonyl or cyano group; and n is 0, an integer from 1 to 4, or, for the phenyl group, 5; or A represents a group of general formula (3) in which each of R.sup.4, R.sup.5 and R.sup.6 independently represents a hydrogen or halogen atom, an optionally substituted alkyl, alkenyl, alkynyl, cycloalkyl, cycloalkylalkyl, aryl, aralkyl, alkaryl alkoxy, amino, mono- or di-alkylamino, alkoxycarbonylamino, arylamino, dialkylcarbamoyl, acyl or acylamido group or a cyano group, with the proviso that R.sup.5 and R.sup.6 do not represent an acyl, acylamido or cyano group; Z represents an oxygen or sulphur atom; R.sup.1 and R.sup.