pyridine; p-toluenesulfonyl chloride 1. dimethylformamide, -5 deg C 2. DMF, 2h; Yield given. Multistep reaction;

ammonium acetate in ethylene glycol T=140°C; 19 h; Yield given;

<b>With</b>&nbsp; <a href="#" onclick="return RXDsubstances(event, this, '3587154', constants.ctx, '0')">ammonia</a> <br />&nbsp;Title compound not separated from byproducts;&nbsp;<br /> &nbsp;