Sodium borohydride → HCID 54426992, compound

HRID 1003606Notes

Reaction equation

HRID 1003606 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 min 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 was stirred at ambient temperature overnight. The white solid which 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: mp 188-189° C.

Workup

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

Sources & evidence

ORD record
ord-3139f232d2c94275ad014a681b66254c
Source dataset
uspto-grants-2000_04
Patent number
US06046213

Reaction notes

Loading…