N,N-dimethyl-formamide Erwaermen des Reaktionsprodukts mit methanol. KOH;

<b>With</b>&nbsp; <a href="#" onclick="return RXDsubstances(event, this, '103233', constants.ctx, '0')">pyridine</a> <br />T=20&deg;C;&nbsp;8&nbsp;h;&nbsp;&nbsp;Inert atmosphere;&nbsp;<br /> <br /> &nbsp;

Stage #1: <a href="#" onclick="return RXDsubstances(event, this, '102415', constants.ctx, '0')">diazomethane</a> &nbsp;Inert atmosphere;&nbsp;<br />Stage #2: <a href="#" onclick="return RXDsubstances(event, this, '3218394', constants.ctx, '0')">3α,6α-dihydroxy-5β-cholan-24-oic acid</a>; <a href="#" onclick="return RXDsubstances(event, this, '607898', constants.ctx, '0')">p-toluenesulfonyl chloride</a> <b>With</b>&nbsp; <a href="#" onclick="return RXDsubstances(event, this, '103233', constants.ctx, '0')">pyridine</a> <br />&nbsp;Inert atmosphere;&nbsp;<br /> &nbsp;

<b>Multi-step reaction with 2 steps<br /> </b>1: sulfuric acid / water / |Reflux<br />2: pyridine / 18 h / 20 &deg;C<br /> <br /> &nbsp;