Sj. Stachel et al., On the total synthesis and preliminary biological evaluations of 15(R) and15(S) aza-dEpoB: A Mitsunobu inversion at C15 in pre-epothilone fragments, ORG LETT, 2(11), 2000, pp. 1637-1639
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The syntheses of two epothilone analogues, 15(S)-aza-12,13-desoxyepothilone
B and the epimeric 15(R)-aza-12,13-desoxyepothitone B, are described. A Mi
tsunobu inversion was utilized for elaboration of pre epothilone fragments
to the corresponding macrolactam. Tubulin binding and cytotoxicity profiles
of these analogues are presented.