862814-40-2Relevant academic research and scientific papers
Synthesis of the C3-C19 segment of phorboxazole B
Vitale, Justin P.,Wolckenhauer, Scott A.,Do, Nga M.,Rychnovsky, Scott D.
, p. 3255 - 3258 (2007/10/03)
(Chemical Equation Presented) Three segment-coupling Prins approaches to the C3-C19 segment of phorboxazole B have been developed. One successful strategy utilized a novel TMSBr-mediated cyclization that proceeded with complete axial selectivity. Displacement of bromide with cesium acetate provided the C13 hydroxyl stereocenter of 22. Additionally, treatment of α-acetoxy ether 20 with TFA enabled a more concise synthesis of the C3-C19 target 13 by allowing direct access to the equatorial alcohol.
