The Journal of organic chemistry, 71(22), 8579-8590 (2006-10-27)
The proposed structures of jenamidines A, B, and C (1-3) were revised to jenamidines A1/A2, B1/B2, and C (8-10). Jenamidines A1/A2 (8) were synthesized from activated proline derivative 43 by conversion to 26 in two steps and 50% overall yield.
We describe the synthesis and biological applications of a novel nitrogen-15-labeled nitrone spin trap, 5-ethoxycarbonyl-5-methyl-1-pyrroline N-oxide ([(15)N]EMPO) for detecting superoxide anion. Superoxide anion generated in xanthine/xanthine oxidase (100 nM min(-1)) and NADPH/calcium-calmodulin/nitric oxide synthase systems was readily detected using EMPO
5-Carboxy-5-methyl-1-pyrroline N-oxide: a spin trap for the hydroxyl radical.
Tsai P, et al.
J. Chem. Soc. Perkin Trans. II, 6, 875-880 (2001)
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