PhOCH.C COOH Classes of Amides inactive enzyme ·1°amide has one C-N bond(woN-H). ·2°amide or N-substituted amide has two C-N bonds (one N-H) ·3°amide or M,W-disubstituted amide has three C-N bonds(no N-H) Chapter 21 Chapter 21 7 Classes of Amides • 1 amide has one C-N bond (two N-H). • 2 amide or N-substituted amide has two C-N bonds (one N-H). • 3 amide or N,N-disubstituted amide has three C-N bonds (no N-H). =>