Sodium Carbonate → 3-[4-Amino-5-(2-benzyl-2H-indazol-6-yl)-pyrrolo[2,1-f][1,2,4]triazin-7-ylmethyl]-pyrrolidine-1-carboxylic acid tert-butyl ester

HRID 1972890Notes

Reaction equation

HRID 1972890 reaction equation
[C:1]([O:5][C:6]([N:8]1[CH2:12][CH2:11][CH:10]([CH2:13][C:14]2[N:22]3[C:17]([C:18]([NH2:23])=[N:19][CH:20]=[N:21]3)=[C:16](Br)[CH:15]=2)[CH2:9]1)=[O:7])([CH3:4])([CH3:3])[CH3:2].[CH2:25]([N:32]1[CH:40]=[C:39]2[C:34]([CH:35]=[C:36](B3OC(C)(C)C(C)(C)O3)[CH:37]=[CH:38]2)=[N:33]1)[C:26]1[CH:31]=[CH:30][CH:29]=[CH:28][CH:27]=1.C([O-])([O-])=O.[Na+].[Na+]>CN(C=O)C.CCOC(C)=O.C1C=CC([P]([Pd]([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)[P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1>[C:1]([O:5][C:6]([N:8]1[CH2:12][CH2:11][CH:10]([CH2:13][C:14]2[N:22]3[C:17]([C:18]([NH2:23])=[N:19][CH:20]=[N:21]3)=[C:16]([C:36]3[CH:37]=[CH:38][C:39]4[C:34]([CH:35]=3)=[N:33][N:32]([CH2:25][C:26]3[CH:31]=[CH:30][CH:29]=[CH:28][CH:27]=3)[CH:40]=4)[CH:15]=2)[CH2:9]1)=[O:7])([CH3:4])([CH3:3])[CH3:2]

Participants

7

Reactant 3

HCID 10340Sodium CarbonateHCID 585293132-benzyl-6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-2H-IndazoleHCID 585295713-(4-Amino-5-bromo-pyrrolo[2,1-f][1,2,4]triazin-7-ylmethyl)-pyrrolidine-1-carboxylic acid tert-butyl ester

Product 1

HCID 585297003-[4-Amino-5-(2-benzyl-2H-indazol-6-yl)-pyrrolo[2,1-f][1,2,4]triazin-7-ylmethyl]-pyrrolidine-1-carboxylic acid tert-butyl esterYield 46.2%

Reagents, catalysts & solvents 3

HCID 178418397HCID 178418397, compoundCatalystHCID 6228DimethylformamideSolventHCID 8857Ethyl AcetateSolvent

Conditions

Temperature
110 °C

Procedure

To a stirred solution 3-(4-Amino-5-bromo-pyrrolo[2,1-f][1,2,4]triazin-7-ylmethyl)-pyrrolidine-1-carboxylic acid tert-butyl ester (0.49 g, 1.24 mmol), Intermediate C (0.62 g, 1.86 mmol), and tetrakis(triphenylphosphine)palladium(0) (0.37 g, 0.32 mmol) in degassed DMF (8 mL) was added aqueous Na2CO3 (2M, 2.00 mL). The resulting mixture was heated at 110° C. for 3 h and then cooled to rt. The reaction mixture was diluted with EtOAc and filtered through a Celite® pad. The organic layer was separated and concentrated in vacuo. The residue was purified by silica-gel column using a gradient of 50% to 100% EtOAc in hexanes to afford 0.30 g (46%) of the product. LC-MS [M+H]+=524.1, RT=3.19 min.

Workup

  1. temperaturecooled to rt
  2. filtrationfiltered through a Celite® pad
  3. customThe organic layer was separated
  4. concentrationconcentrated in vacuo
  5. customThe residue was purified by silica-gel column

Sources & evidence

ORD record
ord-df15d82cd6b4421db907dacc6d5e40f3
Source dataset
uspto-grants-2013_04
Patent number
US08431695B2

Reaction notes

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