1: With Rink amide resin; diisopropyl-carbodiimide in dichloromethane 14 h; 2: With piperidine in N,N-dimethyl-formamide 3: With trifluoroacetic acid in dichloromethane

&nbsp;<b>in</b>&nbsp; <a href="#" onclick="return RXDsubstances(event, this, '1730800', constants.ctx, '0')">dichloromethane</a> <br />T=20&deg;C;&nbsp;14&nbsp;h;&nbsp;<br /> &nbsp;