3-Methoxypropylamine → N-(3-methoxypropyl)-2-(2-phenylpyrimidin-5-yl)thiazole-4-carboxamide

HRID 2274509Notes

Reaction equation

HRID 2274509 reaction equation
[C:1]1([C:7]2[N:12]=[CH:11][C:10]([C:13]3[S:14][CH:15]=[C:16]([C:18]([OH:20])=O)[N:17]=3)=[CH:9][N:8]=2)[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1.CCN=C=NCCCN(C)C.C1C=CC2N(O)N=NC=2C=1.[CH3:42][O:43][CH2:44][CH2:45][CH2:46][NH2:47].C(N(C(C)C)CC)(C)C>ClCCl>[CH3:42][O:43][CH2:44][CH2:45][CH2:46][NH:47][C:18]([C:16]1[N:17]=[C:13]([C:10]2[CH:11]=[N:12][C:7]([C:1]3[CH:2]=[CH:3][CH:4]=[CH:5][CH:6]=3)=[N:8][CH:9]=2)[S:14][CH:15]=1)=[O:20]

Participants

7

Reactant 5

HCID 16723-MethoxypropylamineHCID 159081-Ethyl-3-(3'-dimethylaminopropyl)carbodiimideHCID 757711-HydroxybenzotriazoleHCID 81531DiisopropylethylamineHCID 592524752-(2-Phenylpyrimidin-5-yl)thiazole-4-carboxylic acid

Product 1

HCID 59252401N-(3-methoxypropyl)-2-(2-phenylpyrimidin-5-yl)thiazole-4-carboxamide

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent2×

Procedure

To a solution consisting of 2-(2-phenylpyrimidin-5-yl)thiazole-4-carboxylic acid (Example 63, 80 mg, 0.28 mmol) in dichloromethane (10 mL) was added EDAC (75 mg, 0.39 mmol) and HOBt (53 mg, 0.39 mmol) at 0° C. To this mixture was added 3-methoxypropylamine (25 mg, 0.28 mmol) dissolved in dichloromethane (2 mL) and diisopropylethylamine (0.52 mL, 390 mg, 3.0 mmol). The solution was allowed to reach room temperature and stirred for 18 hours. The solvent was evaporated away under reduced pressure and the residue was purified by silica gel flash chromatography (1:1 v/v hexane-ethyl acetate to 100% ethyl acetate gradient) through a 25-g Silicycle® flash silica cartridge. The title compound was obtained as an off-white solid (21 mg, 21% yield); Rf 0.70 with 4:1 v/v ethyl acetate-hexane; melting point 134-136° C.; 1H-NMR (300 MHz; CDCl3) δ 9.31 (s, 2H), 8.52 (dd, 2H), 8.20 (s, 1H), 7.88 (br t, 1H), 7.53 (m, 3H), 3.62 (t, 2H); 3.59 (t, 2H); 3.41 (s, 3H), 1.96 (m, 2H); MS (ESI+) m/z 355 (M+1); H-PGDS FPBA IC50: 3.4 μM.

Workup

  1. customto reach room temperature
  2. customThe solvent was evaporated away under reduced pressure
  3. customthe residue was purified by silica gel flash chromatography (1:1 v/v hexane-ethyl acetate to 100% ethyl acetate gradient) through a 25-g Silicycle® flash silica cartridge

Sources & evidence

ORD record
ord-bb9589e94fad43da8971979bee0c133e
Source dataset
uspto-grants-2015_09
Patent number
US09126973B2

Reaction notes

Loading…