Diisopropylethylamine → 6-ethoxy-2-[(isoquinoline-3-carbonyl)-amino]-3H-benzoimidazole-4-carboxylic acid ethyl ester

HRID 1910222Notes

Reaction equation

HRID 1910222 reaction equation
[CH:1]1[C:10]2[C:5](=[CH:6][CH:7]=[CH:8][CH:9]=2)[CH:4]=[C:3]([C:11]([OH:13])=O)[N:2]=1.CN(C(ON1N=NC2C=CC=CC1=2)=[N+](C)C)C.F[P-](F)(F)(F)(F)F.CCN(C(C)C)C(C)C.[CH2:47]([O:49][C:50]([C:52]1[C:60]2[N:59]=[C:58]([NH2:61])[NH:57][C:56]=2[CH:55]=[C:54]([O:62][CH2:63][CH3:64])[CH:53]=1)=[O:51])[CH3:48]>CN(C=O)C.[Cl-].[Na+].O>[CH2:47]([O:49][C:50]([C:52]1[C:60]2[NH:59][C:58]([NH:61][C:11]([C:3]3[N:2]=[CH:1][C:10]4[C:5]([CH:4]=3)=[CH:6][CH:7]=[CH:8][CH:9]=4)=[O:13])=[N:57][C:56]=2[CH:55]=[C:54]([O:62][CH2:63][CH3:64])[CH:53]=1)=[O:51])[CH3:48]

Participants

7

Reactant 4

HCID 81531DiisopropylethylamineHCID 124656Isoquinoline-3-carboxylic acidHCID 2733084Methanaminium, N-((1H-benzotriazol-1-yloxy)(dimethylamino)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 66940226HCID 66940226, compound

Product 1

HCID 1784693106-ethoxy-2-[(isoquinoline-3-carbonyl)-amino]-3H-benzoimidazole-4-carboxylic acid ethyl esterYield 62%

Reagents, catalysts & solvents 2

HCID 6228DimethylformamideSolventHCID 57417360Sodium chloride; waterSolvent

Procedure

600 mg (3.0 mmol) of isoquinoline-3-carboxylic acid and 1200 mg (3.1 mmol) of HBTU were dissolved in 3.0 mL of DMF and 0.6 mL of DIEA and reacted with 500 mg (2.0 mmol) of 2-amino-6-ethoxy-1H-benzoimidazole-4-carboxylic acid ethyl ester as described in general procedure A. Upon completion, the reaction was diluted with brine. The resulting solid was filtered, washed with water and EtOAc, and dried under vacuum to produce 500 mg (62%) of 6-ethoxy-2-[(isoquinoline-3-carbonyl)-amino]-3H-benzoimidazole-4-carboxylic acid ethyl ester. LCMS: 406 (M+1)+.

Workup

  1. filtrationThe resulting solid was filtered
  2. washwashed with water and EtOAc
  3. customdried under vacuum

Sources & evidence

ORD record
ord-05ab53f52e44493db8f0987ef1374131
Source dataset
uspto-grants-2013_12
Patent number
US08598353B2

Reaction notes

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