Water → N-(1-cyanocyclopropyl)-2-(6-fluoro-1-methyl-1H-indazol-3-yl)-5H-pyrrolo[3,2-b]pyrazine-7-carboxamide

HRID 246587Notes

Reaction equation

HRID 246587 reaction equation
[F:1][C:2]1[CH:10]=[C:9]2[C:5]([C:6]([C:12]3[N:17]=[C:16]4[C:18]([C:21]([OH:23])=O)=[CH:19][NH:20][C:15]4=[N:14][CH:13]=3)=[N:7][N:8]2[CH3:11])=[CH:4][CH:3]=1.Cl.[NH2:25][C:26]1([C:29]#[N:30])[CH2:28][CH2:27]1.CCN=C=NCCCN(C)C.O>CN(C1C=CN=CC=1)C.CN(C=O)C>[C:29]([C:26]1([NH:25][C:21]([C:18]2[C:16]3=[N:17][C:12]([C:6]4[C:5]5[C:9](=[CH:10][C:2]([F:1])=[CH:3][CH:4]=5)[N:8]([CH3:11])[N:7]=4)=[CH:13][N:14]=[C:15]3[NH:20][CH:19]=2)=[O:23])[CH2:28][CH2:27]1)#[N:30]

Participants

7

Reactant 4

HCID 962WaterHCID 159081-Ethyl-3-(3'-dimethylaminopropyl)carbodiimideHCID 145863631-Amino-1-cyclopropanecarbonitrile hydrochlorideHCID 712796392-(6-fluoro-1-methyl-1H-indazol-3-yl)-5H-pyrrolo[2,3-b]pyrazine-7-carboxylic acid

Product 1

HCID 71279996N-(1-cyanocyclopropyl)-2-(6-fluoro-1-methyl-1H-indazol-3-yl)-5H-pyrrolo[3,2-b]pyrazine-7-carboxamideYield 23%

Reagents, catalysts & solvents 2

HCID 142844-(Dimethylamino)pyridineCatalystHCID 6228DimethylformamideSolvent

Procedure

A mixture of 2-(6-fluoro-1-methyl-1H-indazol-3-yl)-5H-pyrrolo[3,2-b]pyrazine-7-carboxylic acid (90 mg, 0.29 mmol), 1-aminocyclopropanecarbonitrile hydrochloride (41 mg, 0.348 mmol), EDCI (110 mg, 0.58 mmol) and DMAP (75 mg, 0.58 mmol) in DMF (5 mL) was stirred at room temperature for 16 hours. Then the mixture was poured into water (5 mL) and filtered to give the crude product which was purified by preparative-HPLC (Gemini 5u C18 150×21.2 mm; inject volume: 3 mL/inj, flow rate: 20 mL/min; wavelength: 214 nm and 254 nm; the gradient conditions were: 40% acetonitrile/60% water (0.1% trifluoroacetic acid, v/v) initially, proceeding to 55% acetonitrile/45% water (0.1% trifluoroacetic acid, v/v) in a linear fashion over 9 min.) to give N-(1-cyanocyclopropyl)-2-(6-fluoro-1-methyl-1H-indazol-3-yl)-5H-pyrrolo[3,2-b]pyrazine-7-carboxamide (25 mg, 23%) as a white solid. MS: (M+H)+=376; 1H NMR (300 MHz, DMSO): δ 12.95 (s, 1H), 9.10 (s, 1H), 8.87 (s, 1H), 8.56-8.53 (m, 2H), 6.69 (d, 1H, J=8.7 Hz), 7.26 (t, 1H, J=8.7 Hz), 4.15 (s, 3H), 1.70 (brs, 2H), 1.64 (brs, 2H).

Workup

  1. filtrationfiltered
  2. customto give the crude product which
  3. customwas purified by preparative-HPLC (Gemini 5u C18 150×21.2 mm
  4. wait40% acetonitrile/60% water (0.1% trifluoroacetic acid, v/v) initially, proceeding to 55% acetonitrile/45% water (0.1% trifluoroacetic acid, v/v) in a linear fashion over 9 min.

Sources & evidence

ORD record
ord-b857f4d05f054a9d9d5cb52e627d5340
Source dataset
uspto-grants-2014_02
Patent number
US08658646B2

Reaction notes

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