Methanaminium, N-((dimethylamino)(3H-1,2,3-triazolo(4,5-b)pyridin-3-yloxy)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1) → 2-(7-Cyano-1H-benzimidazol-1-yl)-N-{1-[4-(1-cyano-1-methylethyl)-3-fluorophenyl]ethyl}acetamide

HRID 419990Notes

Reaction equation

HRID 419990 reaction equation
Cl.[NH2:2][CH:3]([C:5]1[CH:10]=[CH:9][C:8]([C:11]([CH3:15])([CH3:14])[C:12]#[N:13])=[C:7]([F:16])[CH:6]=1)[CH3:4].[C:17]([C:19]1[C:24]2[N:25]([CH2:28][C:29](O)=[O:30])[CH:26]=[N:27][C:23]=2[CH:22]=[CH:21][CH:20]=1)#[N:18].CN(C(ON1N=NC2C=CC=NC1=2)=[N+](C)C)C.F[P-](F)(F)(F)(F)F>CN(C1C=CN=CC=1)C.CN(C=O)C>[C:17]([C:19]1[C:24]2[N:25]([CH2:28][C:29]([NH:2][CH:3]([C:5]3[CH:10]=[CH:9][C:8]([C:11]([C:12]#[N:13])([CH3:15])[CH3:14])=[C:7]([F:16])[CH:6]=3)[CH3:4])=[O:30])[CH:26]=[N:27][C:23]=2[CH:22]=[CH:21][CH:20]=1)#[N:18]

Participants

6

Reactant 3

HCID 9886157Methanaminium, N-((dimethylamino)(3H-1,2,3-triazolo(4,5-b)pyridin-3-yloxy)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 11195002(7-Cyano-1H-benzimidazol-1-yl)acetic acidHCID 666491832-[4-(1-Aminoethyl)-2-fluorophenyl]-2-methylpropanenitrile hydrochloride

Product 1

HCID 598042632-(7-Cyano-1H-benzimidazol-1-yl)-N-{1-[4-(1-cyano-1-methylethyl)-3-fluorophenyl]ethyl}acetamide

Reagents, catalysts & solvents 2

HCID 142844-(Dimethylamino)pyridineCatalystHCID 6228DimethylformamideSolvent

Procedure

2-(7-Cyano-1H-benzimidazol-1-yl)-N-{1-[4-(1-cyano-1-methylethyl)-3-fluorophenyl]ethyl}acetamide is synthesized according to example 1 by mixing 2-[4-(1-Aminoethyl)-2-fluorophenyl]-2-methylpropanenitrile hydrochloride (260 mg, 0.94 mmol) prepared according to scheme 7, (7-cyano-1H-benzimidazol-1-yl)acetic acid (200 mg, 0.94 mmol) prepared according to scheme 3 and DMAP (228 mg, 1.89 mmol, 1.00 mL) and HATU (358 mg, 2.49 mmol) in DMF (5.0 mL). The product is purified by HPLC: Waters prep LCMS, Flow rate: 27 ml/min, Column: SynerSi (4μ) Polar RP, 21.2×50 mm, Mobile phase: A=water (0.05% TFA) B=MeCN, Gradient used 40% to 60% B in A, in 10 min. The fractions are combined, NaOH 1N is added and the desired compound is extracted with ethyl acetate. The combined organic fractions are concentrated under reduced pressure to yield the product (69 mg, 1.77 mmol, 19%). 1H NMR (400 MHz, METHANOL-D4) δ ppm 1.50 (d, J=7.03 Hz, 3H) 1.72-1.78 (m, 6H) 5.02 (q, J=6.97 Hz, 1H) 5.31 (d, J=17.58 Hz, 1H) 5.36 (d, J=17.58 Hz, 1H) 7.17-7.25 (m, 2H) 7.39 (dd, J=8.20, 7.62 Hz, 1H) 7.43 (t, J=8.40 Hz, 1H) 7.67 (dd, J=7.62, 0.78 Hz, 1H) 7.97 (dd, J=8.20, 0.98 Hz, 1H) 8.26 (s, 1H); MS [M+H], calcd: 390.2. found: 390.3.

Workup

  1. customprepared
  2. customprepared
  3. customThe product is purified by HPLC
  4. additionNaOH 1N is added
  5. extractionthe desired compound is extracted with ethyl acetate
  6. concentrationThe combined organic fractions are concentrated under reduced pressure

Sources & evidence

ORD record
ord-5ca1505283944c50bd1c9e37228a5562
Source dataset
uspto-grants-2012_01
Patent number
US08093402B2

Reaction notes

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