Scheme 20.
a) Hydroxylammonium chloride, EtOH, reflux, 8 h, 75%. b) chloroacetyl chloride, acetic acid, 50 °C, 10 min, 91%. c) NaOH, d) Methylamine, MeOH, rt, 3 d, 36%. e) H2O, f) 1. PCl3, 2. CH3I/base.
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