Hydrazine → (S)-5-amino-2-(3-(2-chloro-3-fluorobenzyl)-1-methylureido)pentyl 5-chloropyridin-2-ylcarbamate

Participants

Reaction Steps

To a solution of (S)-2-(3-(2-chloro-3-fluorobenzyl)-1-methylureido)-5-(1,3-dioxoisoindolin-2-yl)pentyl 5-chloropyridin-2-ylcarbamate (280 mg, 0.47 mmol) in MeOH (5.0 mL) was added NH2NH2 (0.13 mL, 4.7 mmol). The reaction mixture was stirred at RT for 2 h. The mixture was concentrated and re-dissolved in MeOH. The resulting solution was filtered and purified on RP-HPLC using a mixture of acetonitrile and water to give (S)-5-amino-2-(3-(2-chloro-3-fluorobenzyl)-1-methylureido)pentyl 5-chloropyridin-2-ylcarbamate (162 mg, 73%). LRMS (M+H+) m/z 472.2.

Provenance & Evidence