: B 2353 (OTTO) Boc-amide, 98% Cas 4248-19-5 -used in palladium-catalyzed synthesis of N-Boc-protected anilines. B 2353 (OTTO) Boc-amide, 98% Cas 4248-19-5 - used in the synthesis of tetrasubstituted pyrroles, functionalized with ester or ketone groups at C-3 position.