Patent ID: 6764673
Filing Date: 2004-07-20
Classification: C07B,C07C

Abstract:
A labeled compound from the group of [2H1, 13C], [2H2, 13C] and [2H3, 13C]methyl aryl sulfones wherein the 13C methyl group attached to the sulfur of the sulfone includes exactly one, two or three deuterium atoms and the aryl group is selected from the group consisting of 1-naphthyl, substituted 1-naphthyl, 2-naphthyl, substituted 2-naphthyl, and phenyl groups with the structure: wherein R1, R2, R3, R4 and R5 are each independently, hydrogen, a C1-C4 lower alkyl, a halogen, an amino group from the group consisting of NH2, NHR and NRRâ€² where R and Râ€² are each a C1-C4 lower alkyl, a phenyl, or an alkoxy group.