[Cl:1][C:2]1[CH:7]=[CH:6][C:5]([NH:8][CH:9]2[CH2:13][CH2:12][NH:11][CH2:10]2)=[CH:4][CH:3]=1.[O:14]1[CH2:16][CH:15]1[CH2:17][O:18][C:19]1[CH:24]=[CH:23][CH:22]=[CH:21][C:20]=1[NH:25][C:26](=[O:28])[CH3:27].C([O-])([O-])=O.[K+].[K+]>C(O)C>[Cl:1][C:2]1[CH:3]=[CH:4][C:5]([NH:8][CH:9]2[CH2:13][CH2:12][N:11]([CH2:16][CH:15]([OH:14])[CH2:17][O:18][C:19]3[CH:24]=[CH:23][CH:22]=[CH:21][C:20]=3[NH:25][C:26](=[O:28])[CH3:27])[CH2:10]2)=[CH:6][CH:7]=1A mixture of N-(4-chlorophenyl)-3-pyrrolidinamine (2×CF3COOH), (186 mg, 0.438 mmol), N-[2-(2-oxiranylmethoxy)phenyl]acetamide (91 mg, 0.438 mmol) and K2CO3 (200 mg) in ethanol (6 mL) was kept on stirring at 65° C. for 2.5 h. The volatiles were removed in vacuo. The residue was partitioned between ethyl acetate and aq. NH4Cl solution. The organic layer was washed with water, dried over Na2SO4, filtered and concentrated. The residue was purified by flash chromatography (0-3% MeOH in CHCl3) to give the titled product (70 mg).
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