C1N2CN3CN(C2)C[N:2]1C3.[I-].[Na+].[CH2:13]([O:20][C:21]1[CH:26]=[CH:25][N:24]=[C:23]([CH2:27]Cl)[CH:22]=1)[C:14]1[CH:19]=[CH:18][CH:17]=[CH:16][CH:15]=1.Cl>ClCCl.CO.C(OCC)C>[CH2:13]([O:20][C:21]1[CH:26]=[CH:25][N:24]=[C:23]([CH2:27][NH2:2])[CH:22]=1)[C:14]1[CH:19]=[CH:18][CH:17]=[CH:16][CH:15]=1
1.5 g (10.78 mmol) of hexamethylenetetramine and then 1.3 g of sodium iodide are added to 2.1 g (8.99 mmol) of 4-(benzyloxy)-2-(chloromethyl)pyridine (described in stage A) in 60 ml of dichloromethane. The reaction medium is heated at reflux for 12 hours and then concentrated under reduced pressure. The residue obtained is taken up in 45 ml of methanol. 7.5 ml (89.90 mmol) of a 12N hydrochloric acid solution are added. The reaction medium is heated at reflux for 16 hours. After addition of ethyl ether, the precipitate obtained is filtered off and then taken up in a saturated aqueous sodium carbonate solution. The aqueous phase is extracted with ethyl acetate, dried over sodium sulfate and then concentrated under reduced pressure. 1.1 g of a beige oil are collected. Mass spectrometry (ES+Mode): MH+=215
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