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Reagents: (i) HCl, HON=CHCH2NO2; (ii) (CH3CO)2O, CH3COOK; (iii) POCl3; (iv) NH3; (v) H2/Pd; (vi) a) polyphosphoric acid, R'COOH, b) trimethylorthoformate, HCOOH, c) 1. R'COCl, 2. NaOH; (vii) 3-chloroperoxybenzoic acid; (viii) POCl3; (ix) RNH2.
