HuagongsheHuagongshe Chemistry Print Report · For research reference only
Sodium Bicarbonate → (S)-1-((S)-2-(3-azidopropyl)-5-(2,5-difluorophenyl)-2-phenyl-1,3,4-thiadiazol-3(2H)-yl)-2-hydroxypropan-1-one
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Sodium Bicarbonate | HCID 516892 | — |
| Reactant | Tetrabutylammonium Fluoride | HCID 2724141 | — |
| Reactant | (S)-1-((S)-2-(3-azidopropyl)-5-(2,5-difluorophenyl)-2-phenyl-1,3,4-thiadiazol-3(2H)-yl)-2-(t-butyldiphenylsilyloxy)propan-1-one | HCID 86604833 | — |
| Solvent | Tetrahydrofuran | HCID 8028 | — |
| Product | (S)-1-((S)-2-(3-azidopropyl)-5-(2,5-difluorophenyl)-2-phenyl-1,3,4-thiadiazol-3(2H)-yl)-2-hydroxypropan-1-one | HCID 86604834 | 53% |
Reaction Conditions
| Temperature | 0 °C |
|---|
Reaction Steps
To a solution of (S)-1-((S)-2-(3-azidopropyl)-5-(2,5-difluorophenyl)-2-phenyl-1,3,4-thiadiazol-3(2H)-yl)-2-(t-butyldiphenylsilyloxy)propan-1-one (121 mg, 0.18 mmol) in THF (5 mL) at 0° C. was added TBAF (0.31 mL, 1M, 0.31 mmol). After stirring at 0° C. for 1 hour and at room temperature for 1 hour, the mixture was treated with saturated NaHCO3 (20 mL) and extracted with ethyl acetate (3×20 mL). The combined organics were washed with brine (20 mL), dried over Na2SO4, filtered, and concentrated. The brown oil was chromatographed (4:1 hexanes/ethyl acetate) to provide the product (41 mg, 53%) as a pale yellow oil.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US09102639B2 |
| Source dataset | uspto-grants-2015_08 |
| ORD ID | ord-6ea4cb23be964ed0974d22bdb78297ac |
| Source note | uspto-grants-2015_08 |