LX-4211

Sotagliflozin is used for the treatment of patients with type 1 diabetes mellitus.

Two of the current SGLT-2 inhibitors (canagliflozin and LX-4211) have effects on SGLT-1. LX-4211 is a dual SGLT1/2 inhibitor and higher doses of canagliflozin transiently inhibit SGLT-1 in the gut due to high canagliflozin concentrations within the intestinal lumen during the period of drug absorption.

Sotagliflozin is a dual SGLT-1/SGLT-2 inhibitor which is currently under development by Lexicon Pharmaceuticals (phase III). It follows a similar strategy to ertugliflozin, i.e. aryl addition on an acyclic precursor. The synthesis starts from L-xylose 53, and the aryl moiety (same aryl moiety as for dapagliflozin) is introduced on an amide derivative (morpholine amide 54) via Grignard addition. A subsequent transformation leads to the sotagliflozin (Scheme 10). The overall yield of the synthesis is around 30%.

Sotagliflozin synthesis