Controlling thiiranium intermediates—a new route to an iNOS inhibitor |
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Authors: | Geracimos Rassias Stephen A Hermitage |
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Institution: | aGlaxoSmithKline R&D, Chemical Development, Synthetic Chemistry, Gunnels Wood Rd, Stevenage, Herts SG1 2NY, UK |
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Abstract: | Our synthetic efforts towards an iNOS (inducible isoform of the nitric oxide synthase) inhibitor led us to the relatively unexplored field of generating and controlling the reactivity of chiral, unsymmetrical thiiranium species. We found that product regiochemistry depends on a tunable equilibrium, the understanding of which proved pivotal in defining a new route to a drug substance. The development of a new amidination method is also discussed. |
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