Chemoselectivity in the Intramolecular Aza-Wittig Reaction ofN-[2-(Trisubstituted-phosphoranylidene)aminobenzoyl]-2-pyridone-5-carboxylic Acid Derivatives
Chemoselectivity in the Intramolecular Aza-Wittig Reaction of<i>N</i>-[2-(Trisubstituted-phosphoranylidene)aminobenzoyl]-2-pyridone-5-carboxylic Acid Derivatives
The intramolecular aza-Wittig reaction of (5S)-N-[2-(trisubstituted-phosphoranylidene)aminobenzoyl]-2-pyridone-5-carboxylic acid derivatives chemoselectively gave 5-pyrrolo[2,1-c][1,4]benzodiazepinone derivatives or 5(1H)-pyrrolo[2,1-b]quinazolinone derivatives depending on the substituents.