Pyrrolidine → HCID 10362856, compound

Reaction equation

[C:1]1([C:7]2[C:16]3[C:11](=[CH:12][CH:13]=[CH:14][CH:15]=3)[N:10]=[C:9]([O:17][CH2:18][CH2:19][CH2:20][CH2:21][CH2:22][C:23](O)=[O:24])[CH:8]=2)[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1.C(N1C=CN=C1)(N1C=CN=C1)=O.[NH:38]1[CH2:42][CH2:41][CH2:40][CH2:39]1>O1CCCC1>[C:1]1([C:7]2[C:16]3[C:11](=[CH:12][CH:13]=[CH:14][CH:15]=3)[N:10]=[C:9]([O:17][CH2:18][CH2:19][CH2:20][CH2:21][CH2:22][C:23]([N:38]3[CH2:42][CH2:41][CH2:40][CH2:39]3)=[O:24])[CH:8]=2)[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1

Participants

Procedure

To a solution of 5 g of 6-[(4-phenyl-2-quinolyl)oxy]hexanoic acid in 120 cc of tetrahydrofuran is added 2.9 g of 1,1'-carbonyldiimidazole. The mixture is stirred for 2 hours to 50° C. After cooling, 1.3 g of pyrrolidine is added and the mixture is stirred at room temperature overnight. The tetrahydrofuran is removed in vacuo and the residue partitioned between ethyl acetate and water. The ethyl acetate solution is washed with water, dried (Na2SO4), filtered and concentrated in vacuo. The resultant residue is then purified by flash chromatography on silica gel (30-60mm; eluent: 3:7 cyclohexane/ethyl acetate) to give 1-[6-(4-phenyl-2-quinolyloxy)hexanoyl]pyrrolidine as a white solid m.p.=52°-54° C.)