Sodium borohydride → HCID 21893567, compound

HRID 1061171Notes

Reaction equation

HRID 1061171 reaction equation
[C:1]([C:4]1[CH:5]=[C:6]([C:10]2[CH:15]=[CH:14][C:13]([CH:16]([CH3:25])[CH2:17][NH:18][S:19]([CH:22]([CH3:24])[CH3:23])(=[O:21])=[O:20])=[CH:12][CH:11]=2)[CH:7]=[CH:8][CH:9]=1)(=[O:3])[CH3:2].[BH4-].[Na+]>C(O)C>[OH:3][CH:1]([C:4]1[CH:5]=[C:6]([C:10]2[CH:15]=[CH:14][C:13]([CH:16]([CH3:25])[CH2:17][NH:18][S:19]([CH:22]([CH3:24])[CH3:23])(=[O:21])=[O:20])=[CH:12][CH:11]=2)[CH:7]=[CH:8][CH:9]=1)[CH3:2]

Participants

4

Reactant 2

HCID 4311764Sodium borohydrideHCID 21893439HCID 21893439, compound

Product 1

HCID 21893567HCID 21893567, compoundYield 65%

Reagents, catalysts & solvents 1

HCID 702EthanolSolvent

Procedure

To a solution of 0.5 g (1.4 mmol) of material from Example 132 in 5 mL of ethyl alcohol was added 0.05 g (1.4 mmol) of sodium borohydride. The mixture was stirred at ambient temperature for 2 hr, concentrated in vacuo and then 10 mL of ethyl acetate and 10 mL of water was added. The organic layer was separated and the aqueous layer was extracted three times with 5 mL each of ethyl acetate. The combined organic extracts were dried (MgSO4), filtered and concentrated in vacuo. Chromatography (40 g of silica gel, 50% ethyl acetate/hexane) of the residue afforded 0.3 g (65%) of the title compound.

Workup

  1. concentrationconcentrated in vacuo
  2. addition10 mL of ethyl acetate and 10 mL of water was added
  3. customThe organic layer was separated
  4. extractionthe aqueous layer was extracted three times with 5 mL each of ethyl acetate
  5. dry with materialThe combined organic extracts were dried (MgSO4)
  6. filtrationfiltered
  7. concentrationconcentrated in vacuo

Sources & evidence

ORD record
ord-5c4f87fa08a34435a60ca2f00cfa109e
Source dataset
uspto-grants-2003_02
Patent number
US06525099B1

Reaction notes

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