Abstract: The present invention relates to chemical processes for the manufacture of certain quinazoline derivatives, or pharmaceutically acceptable salts thereof. The invention also relates to processes for the manufacture of certain intermediates useful in the manufacture of the quinazoline derivatives and to processes for the manufacture of the quinazoline derivatives utilising said intermediates. In particular, the present invention relates to chemical processes and intermediates useful in the manufacture of the compound 4-(4-bromo-2-fluoroanilino)-6-methoxy-7-(1-methylpiperidin-4-ylmethoxy)quinazoline.

Abstract: The present invention relates to chemical processes for the manufacture of certain quinazoline derivatives, or pharmaceutically acceptable salts thereof. The invention also relates to processes for the manufacture of certain intermediates useful in the manufacture of the quinazoline derivatives and to processes for the manufacture of the quinazoline derivatives utilising said intermediates. In particular, the present invention relates to chemical processes and intermediates useful in the manufacture of the compound 4-(4-bromo-2-fluoroanilino)-6-methoxy-7-(1-methylpiperidin-4-ylmethoxy)quinazoline.

Abstract: The present invention relates to chemical processes for the manufacture of certain quinazoline derivatives, or pharmaceutically acceptable salts thereof. The invention also relates to processes for the manufacture of certain intermediates useful in the manufacture of the quinazoline derivatives and to processes for the manufacture of the quinazoline derivatives utilising said intermediates. In particular, the present invention relates to chemical processes and intermediates useful in the manufacture of the compound 4-(4-bromo-2-fluoroanilino)-6-methoxy-7-(1-methylpiperidin-4-ylmethoxy)quinazoline.

Abstract: The present invention relates to chemical processes for the manufacture of certain quinazoline derivatives, or pharmaceutically acceptable salts thereof. The invention also relates to processes for the manufacture of certain intermediates useful in the manufacture of the quinazoline derivatives and to processes for the manufacture of the quinazoline derivatives utilizing said intermediates. In particular, the present invention relates to chemical processes and intermediates useful in the manufacture of the compound 4-(4-bromo-2-fluoroanilino)-6-methoxy-7-(1-methylpiperidin-4-ylmethoxy)quinazoline.

Abstract: The present invention relates to chemical processes for the manufacture of certain quinazoline derivatives, or pharmaceutically acceptable salts thereof. The invention also relates to processes for the manufacture of certain intermediates useful in the manufacture of the quinazoline derivatives and to processes for the manufacture of the quinazoline derivatives utilising said intermediates. In particular, the present invention relates to chemical processes and intermediates useful in the manufacture of the compound 4-(4-bromo-2-fluoroanilino)-6-methoxy-7-(1-methylpiperidin-4-ylmethoxy)quinazoline.

Abstract: The present invention relates to chemical processes for the manufacture of certain quinazoline derivatives, or pharmaceutically acceptable salts thereof. The invention also relates to processes for the manufacture of certain intermediates useful in the manufacture of the quinazoline derivatives and to processes for the manufacture of the quinazoline derivatives utilizing said intermediates. In particular, the present invention relates to chemical processes and intermediates useful in the manufacture of the compound 4-(4-bromo-2-fluoroanilino)-6-methoxy-7-(1-methylpiperidin-4-ylmethoxy)quinazoline.

Abstract: The present invention relates to chemical processes for the manufacture of certain quinazoline derivatives, or pharmaceutically acceptable salts thereof. The invention also relates to processes for the manufacture of certain intermediates useful in the manufacture of the quinazoline derivatives and to processes for the manufacture of the quinazoline derivatives utilising said intermediates. In particular, the present invention relates to chemical processes and intermediates useful in the manufacture of the compound 4-(4-bromo-2-fluoroanilino)-6-methoxy-7-(1-methylpiperidin-4-ylmethoxy)quinazoline.

Abstract: The present invention relates to chemical processes for the manufacture of certain quinazoline derivatives, or pharmaceutically acceptable salts thereof. The invention also relates to processes for the manufacture of certain intermediates useful in the manufacture of the quinazoline derivatives and to processes for the manufacture of the quinazoline derivatives utilising said intermediates. In particular, the present invention relates to chemical processes and intermediates useful in the manufacture of the compound 4-(4-bromo-2-fluoroanilino)-6-methoxy-7-(1-methylpiperidin-4-ylmethoxy)quinazoline.

Abstract: The present invention relates to chemical processes for the manufacture of certain quinazoline derivatives, or pharmaceutically acceptable salts thereof. The invention also relates to processes for the manufacture of certain intermediates useful in the manufacture of the quinazoline derivatives and to processes for the manufacture of the quinazoline derivatives utilising said intermediates.

Abstract: The present invention relates to a process for the manufacture of a compound of the Formula IIa: wherein R is a suitable sulphonate ester; from a (C1-C6)alkyl-4-piperidinecarboxylate compound of the Formula III:

Abstract: The present invention relates to chemical processes for the manufacture of certain quinazoline derivatives, or pharmaceutically acceptable salts thereof. The invention also relates to processes for the manufacture of certain intermediates useful in the manufacture of the quinazoline derivatives and to processes for the manufacture of the quinazoline derivatives utilising said intermediates. In particular, the present invention relates to chemical processes and intermediates useful in the manufacture of the compound 4-(4-bromo-2-fluoroanilino)-6-methoxy-7-(1-methylpiperidin-4-ylmethoxy)quinazoline.

Abstract: Processes for preparing compounds of Formula I and IV are described.

Abstract: The invention relates to compounds such as where P is a nitrogen-protecting group, and to processes for preparing these compounds.

Abstract: The present invention relates to chemical processes for the manufacture of certain quinazoline derivatives, or pharmaceutically acceptable salts thereof. The invention also relates to processes for the manufacture of certain intermediates useful in the manufacture of the quinazoline derivatives and to processes for the manufacture of the quinazoline derivatives utilising said intermediates. In particular, the present invention relates to chemical processes and intermediates useful in the manufacture of the compound 4-(4-bromo-2-fluoroanilino)-6-methoxy-7-(1-methylpiperidin-4-ylmethoxy)quinazoline.

Abstract: Process for preparing compounds of Formula (I); and (IV); are described.

Abstract: A process for the manufacture of: wherein R is (1-4C)alkyl, carboxyl(1-4C)alkyl or 1,3,4-oxadiazol-2-yl comprises: (a) reaction of the diazonium salt of 3-amino-2-chloropyridine with thionyl chloride in water and an electron transfer catalyst; (b) reaction with isobutyl-(3-methoxy-5-methylpyrazin-2-yl)carbamate and an alkali metal hydride in inert solvent; and (I) where R is (1-4C)alkyl, carboxy(1-4C)alkyl: (c) reaction with a boronic acid: (or an anhydride or ester therof) in the presence of a base and a palladium or nickel catalyst in solvent; and removal of the isobutoxy carbonyl group; or (ii) where R is 1,3,4-oxadiazol-2-yl (c) reaction with 4-methoxycarbonylphenylboronic acid (or an anhydride or ester thereof) with a source fluoride ion under aqueous conditions; (d) removal of the isobutoxycarbonyl protecting group; (e) conversion of the methyl ester group to the hydrazide; and (f) conversion to a 1,3,4-oxadiazol-2-yl moiety.

Abstract: A process is described for the manufacture of a pyridinesulfonyl chloride or a benzenesulfonyl chloride in which the benzene ring bears one or more electron-withdrawing groups, the process comprising reacting a diazonium salt of an aminopyridine or aminobenzene in which the benzene ring bears one or more electron withdrawing groups with a mixture of thionyl chloride in water, in the presence of an electron transfer catalyst.

Abstract: A process is described for the manufacture of a pyridinesulfonyl chloride or a benzenesulfonyl chloride in which the benzene ring bears one or more electron-withdrawing groups, the process comprising reacting a diazonium salt of an aminopyridine or aminobenzene in which the benzene ring bears one or more electron withdrawing groups with a mixture of thionyl chloride in water, in the presence of an electron transfer catalyst.

Abstract: Process for the dimerization of ACN to substantially linear C.sub.6 dimers using organic phosphinites or phosphonites as catalyst, in the presence of a proton-donating solvent and optionally a hydrocarbon co-solvent, the ACN and solvent(s) being dry and at least one of the solvents having a boiling point higher than ACN and being capable of rapid phase separation with respect to the dimeric products. Enables the unreacted ACN to be removed by distillation and the solvent(s) and product to be readily separated. Preferably the catalyst partitions in favor of the solvent phase.