Synthesis and characterisation of 13C and 15N isotopomers of a 1-acyl-7-nitroindoline

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Abstract

Efficient methods are described for synthesis of isotopomers of the water-soluble, photolabile 1-acyl-7-nitroindoline 5 with either 13C in the carbonyl of the acyl substituent or 15N in the nitro group. The isotopic incorporations were verified by IR difference spectroscopy coupled with flash photolysis.

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