Triethylsilane → HCID 59753038, compound

HRID 750073Notes

Reaction equation

HRID 750073 reaction equation
C(OC([N:8]1[CH2:12][CH2:11][CH2:10][CH:9]1[CH2:13][O:14][C:15]1[CH:20]=[CH:19][C:18]([C:21](=O)[CH2:22][C:23]2[CH:28]=[CH:27][CH:26]=[CH:25][CH:24]=2)=[CH:17][CH:16]=1)=O)(C)(C)C.C([SiH](CC)CC)C.[OH-].[Na+]>C(O)(C(F)(F)F)=O>[CH2:21]([C:18]1[CH:19]=[CH:20][C:15]([O:14][CH2:13][C@H:9]2[CH2:10][CH2:11][CH2:12][NH:8]2)=[CH:16][CH:17]=1)[CH2:22][C:23]1[CH:24]=[CH:25][CH:26]=[CH:27][CH:28]=1

Participants

5

Reactant 3

HCID 12052TriethylsilaneHCID 14798Sodium HydroxideHCID 59753026HCID 59753026, compound

Product 1

HCID 59753038HCID 59753038, compoundYield 82%

Reagents, catalysts & solvents 1

HCID 6422Trifluoroacetic acidSolvent

Procedure

To a solution of R)-2-(4-phenylacetyl-phenoxymethyl)-pyrrolidine-1-carboxylic acid tert-butyl ester (40 mg, 0.16 mmol) in TFA (1.0 mL) was added triethylsilane (0.2 mL, 0.9 mmol) at 0° C. The resulting mixture was allowed to warm to rt and stir at rt for 16 h. The mixture was poured onto 20 mL ice-water solution, neutralized with aq NaOH (2N) to pH=6-7, and then extracted with EtOAc (3×20 mL). The combined organic layers were washed with water (2×20 mL) and brine (20 mL) and dried over anhy. Na2SO4. The solvent was removed in vacuo to obtain the crude product which was purified by silica gel flash chromatography to afford the title product (25 mg, 82%); LCMS; 99%, ESI+, Calcd: 281.4. Found m/z: 282.6 M+1). 1H NMR (400 MHz, CDCl3,); δ 1.54-1.61 (m, 1H), 1.74-1.84 (m, 2H), 1.90-1.99 (m, 1H), 2.84-3.07 (m, 6H), 3.49-3.52 (m, 1H), 3.83-3.92 (m, 2H), 6.82 (d, J=8.8 Hz, 2H), 7.07 (d, J=8.8 Hz, 2H), 7.16-7.20 (m, 3H)-7.34 (m, 2H).

Workup

  1. extractionextracted with EtOAc (3×20 mL)
  2. washThe combined organic layers were washed with water (2×20 mL) and brine (20 mL)
  3. customdried over anhy
  4. customThe solvent was removed in vacuo
  5. customto obtain the crude product which
  6. customwas purified by silica gel flash chromatography

Sources & evidence

ORD record
ord-1e6cd870c7b745f78bd1353706a85d63
Source dataset
uspto-grants-2008_07
Patent number
US07402684B2

Reaction notes

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