Triethylamine → (2e)-3-[4-Amino-3-(3-phenoxy-1-propynyl)thieno[3,2-c]pyridin-7-yl]-n-methylacrylamide

HRID 2390621Notes

Reaction equation

HRID 2390621 reaction equation
Br[C:2]1[C:6]2[C:7]([NH2:12])=[N:8][CH:9]=[C:10](I)[C:5]=2[S:4][CH:3]=1.[CH2:13]([O:16][C:17]1[CH:22]=[CH:21][CH:20]=[CH:19][CH:18]=1)[C:14]#[CH:15].[CH:23]1[CH:28]=CC(P(C2C=CC=CC=2)C2C=CC=CC=2)=C[CH:24]=1.CC[N:44]([CH2:47]C)CC.C[O:50]CCOC.O.C(O)C>Cl[Pd](Cl)([P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1)[P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1.[Cu]I>[NH2:12][C:7]1[C:6]2[C:2]([C:15]#[C:14][CH2:13][O:16][C:17]3[CH:22]=[CH:21][CH:20]=[CH:19][CH:18]=3)=[CH:3][S:4][C:5]=2[C:10](/[CH:24]=[CH:23]/[C:28]([NH:44][CH3:47])=[O:50])=[CH:9][N:8]=1

Participants

8

Reactant 5

HCID 8471TriethylamineHCID 11776TriphenylphosphineHCID 83613(Prop-2-ynyloxy)benzeneHCID 184507913-Bromo-7-iodothieno[3,2-C]pyridin-4-amineHCID 86587095Dimethoxyethane ethanol water

Product 1

HCID 11739996(2e)-3-[4-Amino-3-(3-phenoxy-1-propynyl)thieno[3,2-c]pyridin-7-yl]-n-methylacrylamideYield 27%

Reagents, catalysts & solvents 2

HCID 24350Copper(1+) iodide; Copper(I) iodide; Cuprous iodide; Cuprous iodide (CuI)CatalystHCID 178418476HCID 178418476, compoundCatalyst

Procedure

A mixture of Example 21A (150 mg, 0.48 mmol), (2-propynyloxy)benzene (0.13 mL, 0.96 mmol), PdCl2(PPh3)2 (17 mg, 0.024 mmol), PPh3 (15 mg, 0.057 mmol), CuI (3 mg), and Et3N (1 mL, 7.2 mmol) in DME/water/ethanol (70:30:20 mixture, 2 mL) was heated in a sealed vial to 125° C. for 25 minutes with stirring in a Smith Synthesizer microwave oven (at 300 W). The reaction mixture was concentrated and the residue was purified by HPLC using the conditions described in Example 21C to provide 47 mg (27% yield) of the desired product. 1H NMR (400 MHz, DMSO-d6) δ 2.71 (d, J=4.6 Hz, 3H), 5.18 (s, 2H), 6.50 (d, J=16.0 Hz, 1H), 6.91 (s, 2H), 7.00 (t, J=7.4 Hz, 1H), 7.08 (dd, J=8.8, 0.9 Hz, 2H), 7.35 (dd, J=8.8, 7.4 Hz, 2H), 7.52 (d, J=16.0 Hz, 1H), 8.10-8.13 (m, 2H), 8.14 (s, 1H); MS (ESI(+)) m/e 364.0 (M+H)+.

Workup

  1. concentrationThe reaction mixture was concentrated
  2. customthe residue was purified by HPLC

Sources & evidence

ORD record
ord-7de73d3e8966441f931c10fef9cd6c80
Source dataset
uspto-grants-2012_09
Patent number
US08273736B2

Reaction notes

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