171 _best_: Sivr

[Generated for Academic Review] Date: April 14, 2026

Pharmaceutical companies have scaled SIVR 171 synthesis to multi-kilogram batches using continuous flow chemistry for the sulfonylation step, which is exothermic. The adoption of flow reactors has improved yield consistency (from 65% to 74%) and reduced reaction time from 12 hours to 45 minutes. sivr 171

In one published process, using SIVR 171 reduced the formation of an unwanted diastereomer from 18% to under 2%, significantly streamlining purification. [Generated for Academic Review] Date: April 14, 2026