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The increasing popularity of ring-closing metathesis (RCM) can be attributed to the development of transition metal complexes 1, 2 and 3 as initiators. These compounds efficiently promote the RCM process, are compatible with a wide range of chemical functionalities and can be used without recourse to rigorously controlled reaction conditions. In this chapter, applications of this technology to the...
In addition to the total synthesis of the thiomethyl thiazole side chain analogue of epothilone B (3), a series of related trans-12,13-cyclopropyl epothilone B analogues (6, 8, 10, 12-14) was accomplished. While the synthesis of the epothilone B analogue (3) proceeded through a Stille coupling of a vinyl iodide substrate containing the epothilone macrocycle with the appropriate side chain stannane,...
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