Acetic Acid → HCID 136377186, compound

HRID 1027306Notes

Reaction equation

HRID 1027306 reaction equation
[CH2:1]1[C@@H:5]2[CH2:6][NH:7][CH2:8][C@@H:4]2[CH2:3][N:2]1[C:9]1[N:14]=[N:13][C:12]([C:15]2[CH:20]=[CH:19][C:18]([C:21]3[CH:22]=[N:23][NH:24][CH:25]=3)=[CH:17][C:16]=2[OH:26])=[CH:11][CH:10]=1.[Si:27]([O:34][CH2:35][CH:36]=O)([C:30]([CH3:33])([CH3:32])[CH3:31])([CH3:29])[CH3:28].[Na].C(O)(=O)C>C(Cl)Cl>[Si:27]([O:34][CH2:35][CH2:36][N:7]1[CH2:6][C@@H:5]2[CH2:1][N:2]([C:9]3[N:14]=[N:13][C:12]([C:15]4[CH:20]=[CH:19][C:18]([C:21]5[CH:22]=[N:23][NH:24][CH:25]=5)=[CH:17][C:16]=4[OH:26])=[CH:11][CH:10]=3)[CH2:3][C@@H:4]2[CH2:8]1)([C:30]([CH3:33])([CH3:32])[CH3:31])([CH3:29])[CH3:28]

Participants

6

Reactant 4

HCID 176Acetic AcidHCID 41877882-((Tert-butyldimethylsilyl)oxy)acetaldehydeHCID 5360545SodiumHCID 136377184HCID 136377184, compound

Product 1

HCID 136377186HCID 136377186, compoundYield 51%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

To a solution of 2-(6-((3aR,6aS)-hexahydropyrrolo[3,4-c]pyrrol-2(1H)-yl)pyridazin-3-yl)-5-(1H-pyrazol-4-yl)phenol (31.4 mg, 0.09 mmol), 2-((tert-butyldimethylsilyl)oxy)acetaldehyde (47.1 mg, 0.270 mmol), and sodium triacetoxyhydroborate (57.2 mg, 0.270 mmol) in CH2Cl2 (2 mL), was added acetic acid (0.013 mL, 0.225 mmol). The reaction mixture was stirred at RT overnight, then quenched with water and diluted with DCM. The organic layer was acidified with 1N HCl solution to pH˜3 and filtered to remove insoluble materials. The filtrate was loaded onto an SCX column, washed with MeOH, then eluted with 7N NH3 in MeOH. Concentration provided a brownish solid, 2-(6-((3a R,6aS)-5-(2-((tert-butyldimethylsilyl)oxy)ethyl)hexahydropyrrolo[3,4-c]pyrrol-2(1H)-yl)pyridazin-3-yl)-5-(1H-pyrazol-4-yl)phenol (23 mg, 0.020 mmol, 51% yield), MS (M+1)=507.1.

Workup

  1. customquenched with water
  2. additiondiluted with DCM
  3. filtrationfiltered
  4. customto remove insoluble materials
  5. washwashed with MeOH
  6. washeluted with 7N NH3 in MeOH
  7. concentrationConcentration

Sources & evidence

ORD record
ord-8f733c6dc9ed490c8b06e3f1a5e6c050
Source dataset
uspto-grants-2014_05
Patent number
US08729263B2

Reaction notes

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