sodium methylate in methanol 1 h; Ambient temperature; Yield given;

<b>Multi-step reaction with 2 steps<br /> </b>1: 100 percent / pyridine / 1 h / Ambient temperature<br />2: 1.) NCS, 2.) EtN(i-Pr)2 / 1.) DMF, r.t., 1 h<br /> <br /> &nbsp;

<b>Multi-step reaction with 4 steps<br /> </b>1: NaOMe / TBAB / dimethylformamide / 16 h / Ambient temperature<br />2: 98 percent / TFA / CH₂Cl₂ / Ambient temperature<br />3: 100 percent / pyridine / 1 h / Ambient temperature<br />4: 1.) NCS, 2.) EtN(i-Pr)2 / 1.) DMF, r.t., 1 h<br /> <br /> &nbsp;