1,2-Dichloroethane → (E)-3-(6-Aminopyridin-3-yl)-N-methyl-N-(1-methyl-1H-indazol-3-ylmethyl)acrylamide

HRID 225913Notes

Reaction equation

HRID 225913 reaction equation
C(Cl)CCl.[NH2:5][C:6]1[N:11]=[CH:10][C:9](/[CH:12]=[CH:13]/[C:14]([OH:16])=O)=[CH:8][CH:7]=1.[CH3:17][N:18]1[C:26]2[C:21](=[CH:22][CH:23]=[CH:24][CH:25]=2)[C:20]([CH2:27][NH:28][CH3:29])=[N:19]1.C1C=CC2N(O)N=NC=2C=1.O.CCN(CC)CC>CN(C=O)C>[NH2:5][C:6]1[N:11]=[CH:10][C:9](/[CH:12]=[CH:13]/[C:14]([N:28]([CH3:29])[CH2:27][C:20]2[C:21]3[C:26](=[CH:25][CH:24]=[CH:23][CH:22]=3)[N:18]([CH3:17])[N:19]=2)=[O:16])=[CH:8][CH:7]=1

Participants

8

Reactant 6

HCID 111,2-DichloroethaneHCID 962WaterHCID 8471TriethylamineHCID 757711-HydroxybenzotriazoleHCID 7537473N-Methyl-N-[(1-methyl-1H-indazol-3-yl)methyl]amineHCID 10487224(2E)-3-(6-aminopyridin-3-yl)prop-2-enoic acid

Product 1

HCID 9797187(E)-3-(6-Aminopyridin-3-yl)-N-methyl-N-(1-methyl-1H-indazol-3-ylmethyl)acrylamideYield 74.1%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

EDC (230 mg, 1.2 mmole) was added to a solution (E)3-(6-aminopyridin-3-yl)acrylic acid (164 mg, 1.0 mmole), 1-methyl-3-(methylaminomethyl)-1H-indazole (210 mg, 1.2 mmole), HOBt.H2O (162 mg, 1.2 mmole), and Et3N (0.28 mL, 2.0 mmole) in dry DMF (5 mL) at RT. After 18 hr the mixture was concentrated. Flash chromatography on silica gel (5% EtOH/EtOAc) gave the title compound (238 mg, 74%) as a white foam: 1H NMR (400 MHz, CDCl3) δ 8.24 (m, 1 H), 7.90 (m, 1 H), 7.65 (m, 2 H), 7.35 (m, 2 H), 7.09 (m, 1 H), 6.73 (m, 1 H), 6.50 (m, 1 H), 5.04 (s, 2 H), 4.83 (bs, 2 H), 4.04 (s, 3 H), 3.10 (s, 3 H); MS (ES) m/e 322 (M+H)+.

Workup

  1. customat RT
  2. concentrationAfter 18 hr the mixture was concentrated

Sources & evidence

ORD record
ord-61e84506eff941b28091198715f827c1
Source dataset
uspto-grants-2009_07
Patent number
US07557125B2

Reaction notes

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