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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2040357Generated: November 1, 2026

Trifluoroacetic acid → 2-(2-(3-azidopropyl)-5-(2,5-difluorophenyl)-2-phenyl-1,3,4-thiadiazol-3(2H)-yl)-4,5,6,7-tetrahydrothiazolo[5,4-c]pyridine

https://huagongshe.com/reaction/2040357

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTrifluoroacetic acidHCID 6422—
Reactanttert-butyl 2-(2-(3-azidopropyl)-5-(2,5-difluorophenyl)-2-phenyl-1,3,4-thiadiazol-3(2H)-yl)-6,7-dihydrothiazolo[5,4-c]pyridine-5(4H)-carboxylateHCID 86608771—
SolventDichloromethaneHCID 6344—
Product2-(2-(3-azidopropyl)-5-(2,5-difluorophenyl)-2-phenyl-1,3,4-thiadiazol-3(2H)-yl)-4,5,6,7-tetrahydrothiazolo[5,4-c]pyridineHCID 8660877296.3%

Reaction Conditions

Temperature0 °C

Reaction Steps

To a solution of tert-butyl 2-(2-(3-azidopropyl)-5-(2,5-difluorophenyl)-2-phenyl-1,3,4-thiadiazol-3(2H)-yl)-6,7-dihydrothiazolo[5,4-c]pyridine-5(4H)-carboxylate (0.313 g, 0.524 mmol) in 10.0 mL of DCM at 0° C. was added TFA (1 mL). The mixture was stirred for 1 hour at 0° C. then at room temperature for 1 hour. The reaction was then concentrated to dryness and partitioned between EtOAc (30 mL) and saturated NaHCO3 solution (30 mL). The aqueous layer was extracted with EtOAc (2×20 mL) and the combined organic phases were washed with brine (20 mL), dried over Na2SO4 and concentrated in vacuo to afford the desired product as a yellow gum (0.251 g, 96%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08580828B2
Source datasetuspto-grants-2013_11
ORD IDord-dd3d43b1b80648df8fef84fc64493b0e
Source noteuspto-grants-2013_11