[N:1]1[C:10]2[C:5](=[CH:6][C:7]([C:11]([OH:13])=O)=[CH:8][CH:9]=2)[CH:4]=[CH:3][CH:2]=1.Cl.[NH2:15][CH2:16][C:17]#[N:18].F[P-](F)(F)(F)(F)F.N1([P+](N(C)C)(N(C)C)N(C)C)C2C=CC=CC=2N=N1.C(N(CC)CC)C>CN(C)C=O.O.C(OCC)(=O)C>[C:16]([CH2:17][NH:18][C:11]([C:7]1[CH:6]=[C:5]2[C:10](=[CH:9][CH:8]=1)[N:1]=[CH:2][CH:3]=[CH:4]2)=[O:13])#[N:15]To a solution of quinoline-6-carboxylic acid (500 mg, 2.9 mmol) and amino acetonitrile hydrochloride (320 mg, 3.4 mmol) in N,N-dimethylformamide (10 mL) were added benzotriazol-1-yl-tris(dimethylamino)phosphonium hexafluorophosphate (1.5 g, 3.48 mmol) and triethylamine (1.2 mL, 8.7 mmol), and the solution was stirred at 60° C. for 10 minutes. Ethyl acetate and water was added to the reaction solution, which was then partitioned, the organic layer was washed twice with water. Silica gel was added to the organic layer, the solvent was evaporated in vacuo for adsorption, purified by NH silica gel column chromatography (ethyl acetate), and the title compound (420 mg, 2.0 mmol, 68.9%) was obtained as a light brown solid.
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