phosphate buffer ((di)hydrogenorthophosphate) 192 h; Ambient temperaturepH 7; Yield given. Yields of byproduct given;

<b>Multi-step reaction with 5 steps<br /> </b>1: 76 percent / pyridine / Ambient temperature<br />2: 73 percent / H₂ / 5percent Pd/C / ethyl acetate; ethanol / 3102.9 Torr<br />3: 86 percent / pyridine<br />4: 76 percent / Et₄NCl / acetonitrile / 65 &deg;C<br />5: 85 percent / NaOMe / methanol<br /> <br /> &nbsp;

<b>Multi-step reaction with 4 steps<br /> </b>1: 30 percent / tributyltin methoxide / tetrahydrofuran / Heating<br />2: 86 percent / pyridine<br />3: 76 percent / Et₄NCl / acetonitrile / 65 &deg;C<br />4: 85 percent / NaOMe / methanol<br /> <br /> &nbsp;