Sodium borohydride → HCID 54426992, compound

HRID 1744868Notes

Reaction equation

HRID 1744868 reaction equation
[BH4-].[Na+].[CH3:3][C:4]1[CH:5]=[C:6]([C:21](=[O:38])[CH:22]([N:24]2[CH2:29][CH2:28][C:27]([C:31]3[CH:36]=[CH:35][C:34]([F:37])=[CH:33][CH:32]=3)([OH:30])[CH2:26][CH2:25]2)[CH3:23])[CH:7]=[CH:8][C:9]=1[O:10][Si:11]([CH:18]([CH3:20])[CH3:19])([CH:15]([CH3:17])[CH3:16])[CH:12]([CH3:14])[CH3:13]>C(O)C>[CH3:3][C:4]1[CH:5]=[C:6]([C@@H:21]([OH:38])[C@H:22]([N:24]2[CH2:25][CH2:26][C:27]([C:31]3[CH:36]=[CH:35][C:34]([F:37])=[CH:33][CH:32]=3)([OH:30])[CH2:28][CH2:29]2)[CH3:23])[CH:7]=[CH:8][C:9]=1[O:10][Si:11]([CH:18]([CH3:19])[CH3:20])([CH:15]([CH3:16])[CH3:17])[CH:12]([CH3:13])[CH3:14]

Participants

4

Reactant 2

HCID 4311764Sodium borohydrideHCID 22225731HCID 22225731, compound

Product 1

HCID 54426992HCID 54426992, compoundYield 74.3%

Reagents, catalysts & solvents 1

HCID 702EthanolSolvent2×

Procedure

A mixture of sodium borohydride (0.564 g, 14.92 mmol) and ethanol (60 mL) was stirred 10 minutes and then 1-(3-methyl-4-triisopropylsilyloxyphenyl)-2-(4-(4-fluorophenyl)-4-hydroxypiperidin-1-yl)-propan-1-one (7.66 g, 14.92 mmol in 10 mL of ethanol) was added with two 30 mL ethanol rinses. The reaction mixture was stirred at ambient temperature overnight. The white solid that precipitated was collected by filtration and dried to yield 5.72 g (74%) of (1R*,2R*)-1-(3-methyl-4-triisopropylsilyloxyphenyl)-2-(4-(4-fluorophenyl)-4-hydroxypiperidin-1-yl)-propan-1-ol, which was suitable for use without further purification and had: m.p. 188-89° C.

Workup

  1. stirringThe reaction mixture was stirred at ambient temperature overnight
  2. customThe white solid that precipitated
  3. filtrationwas collected by filtration
  4. customdried

Sources & evidence

ORD record
ord-094dd356b957458dace2623846182dfe
Source dataset
uspto-grants-2006_03
Patent number
US07019016B2

Reaction notes

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