Patent ID: 9006456
Filing Date: 2015-04-14
Classification: C07D

Abstract:
1. A process for the preparation of a compound of formula I comprising a. reacting a compound of formula II with a nucleophile in the presence of water to give a compound comprising a thietane moiety in which the carbon atom at the 3 position of the thietane moiety is bonded to a nitrogen atom; wherein the nucleophile is selected the group consisting of: N b. when the nucleophile used in step a. is N when the nucleophile used in step a. is a sulfonamide, reacting the compound produced in step a. with a reagent suitable for cleaving the S—N bond of the sulfonamide group to give a compound of formula I; or when the nucleophile used in step a. is a diimide, reacting the compound produced in step a. with a reagent suitable for cleaving the C—N bond of the amide group to give a compound of formula I.