Sodium borohydride → HCID 59129200, compound

HRID 2038055Notes

Reaction equation

HRID 2038055 reaction equation
[C:1]([C:5]1[N:6]([CH2:31][C:32](=[O:36])[C:33]([OH:35])=[O:34])[C:7]2[C:12]([CH:13]=1)=[CH:11][C:10]([NH:14][C:15]([C:17]1([C:20]3[CH:30]=[CH:29][C:23]4[O:24][C:25]([F:28])([F:27])[O:26][C:22]=4[CH:21]=3)[CH2:19][CH2:18]1)=[O:16])=[CH:9][CH:8]=2)([CH3:4])([CH3:3])[CH3:2].[BH4-].[Na+]>CO>[C:1]([C:5]1[N:6]([CH2:31][CH:32]([OH:36])[C:33]([OH:35])=[O:34])[C:7]2[C:12]([CH:13]=1)=[CH:11][C:10]([NH:14][C:15]([C:17]1([C:20]3[CH:30]=[CH:29][C:23]4[O:24][C:25]([F:28])([F:27])[O:26][C:22]=4[CH:21]=3)[CH2:19][CH2:18]1)=[O:16])=[CH:9][CH:8]=2)([CH3:4])([CH3:2])[CH3:3]

Participants

4

Reactant 2

HCID 4311764Sodium borohydrideHCID 59129263HCID 59129263, compound

Product 1

HCID 59129200HCID 59129200, compound

Reagents, catalysts & solvents 1

HCID 887MethanolSolvent

Procedure

To a solution of 3-(2-tert-butyl-5-(1-(2,2-difluorobenzo[d][1,3]dioxol-5-yl)cyclopropanecarboxamido)-1H-indol-1-yl)-2-oxopropanoic acid (50 mg, 0.10 mmol) in MeOH (1 mL) was added NaBH4(19 mg, 0.50 mmol) at 0° C. The mixture was stirred at room temperature for 15 min. The resulting mixture was partitioned between EtOAc and water. The aqueous layer was extracted with EtOAc twice and the combined organic layers were washed with brine and dried over anhydrous MgSO4. After the removal of the solvent, the residue was taken up in DMSO and purified by preparative LC/MS to give 3-(2-tert-butyl-5-(1-(2,2-difluorobenzo[d][1,3]dioxol-5-yl)cyclopropanecarboxamido)-1H-indol-1-yl)-2-hydroxypropanoic acid. 1 H NMR (400 MHz, CDCl3) δ 7.36(s), 7.27-7.23(m, 2H), 7.15-7.11 (m, 2H), 6.94(d, J=8.5 Hz, 1H), 6.23(s, 1H), 4.71(s, 3H), 4.59(q, J=10.3 Hz, 1H), 4.40-4.33 (m, 2H), 1.70(d, J=1.9 Hz, 2H), 1.15(q, J=4.0 Hz, 2H). 13C NMR (400 MHz, CDCl3) δ 173.6, 173.1, 150.7, 144.1, 143.6, 136.2, 135.4, 134.3, 131.7, 129.2, 129.0, 127.6, 126.7, 116.6, 114.2, 112.4, 110.4, 110.1, 99.7, 70.3, 48.5, 32.6, 30.9, 30.7, 16.8. MS (ESI) m/e (M+H+) 501.2.

Workup

  1. customThe resulting mixture was partitioned between EtOAc and water
  2. extractionThe aqueous layer was extracted with EtOAc twice
  3. washthe combined organic layers were washed with brine
  4. dry with materialdried over anhydrous MgSO4
  5. customAfter the removal of the solvent
  6. custompurified by preparative LC/MS

Sources & evidence

ORD record
ord-4054093c8dec43b08ebf8870f7fada6e
Source dataset
uspto-grants-2013_11
Patent number
US08575209B2

Reaction notes

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