Abstract: The invention provides a process for the preparation of a sartan derivative of formula (I) (formula as filed in paper form) (I) wherein the substituents have the meaning indicated in the description, or a pharmaceutically acceptable salt thereof, comprising reacting 2-cyanophenylboronic acid or a derivative thereof with a p-halobenzyl-1H-imidazole derivative of formula (VI), (formula as filed in paper form) (VI) wherein (part of formula as filed in paper form), X, Y, R1 and R2 are as defined above, and Z is I, Br or Cl, in the presence of a transition metal catalyst and an inorganic or organic base. The invention also provides new intermediates of formula (V), (formula as filed in paper form) (V) wherein M is an alkali metal or an NR4R5R6R7 group; and of formula (II) (formula as filed in paper form) (II).

Abstract: A method for manufacturing hydrogen sulphate (alpha S) of the alpha-(2-chlorophenyl)-6,7dihydrothieno[3,2-c]pyridine-5(4H)-acetic acid methyl ester (clopidogrel hydrogen sulphate) of formula I, in crystalline Form I, wherein the compound of formula is separated out of a solution of clopidogrel in the form of the free base or salt in a solvent selected from the series of primary, secondary or tertiary C1-C5 alcohols, their esters with C1-C4 carboxylic acids, or optionally of mixtures thereof.

Abstract: The invention provides a process for the preparation of a sartan derivative of formula (I) (formula as filed in paper form) (I) wherein the substituents have the meaning indicated in the description, or a pharmaceutically acceptable salt thereof, comprising reacting 2-cyanophenylboronic acid or a derivative thereof with a p-halobenzyl-1H-imidazole derivative of formula (VI), (formula as filed in paper form) (VI) wherein (part of formula as filed in paper form), X, Y, R1 and R2 are as defined above, and Z is I, Br or Cl, in the presence of a transition metal catalyst and an inorganic or organic base.