2-Fluoroalkyl A-Ring Analogs of 1,25-Dihydroxyvitamin D3. Stereocontrolled Total Synthesis via Intramolecular and Intermolecular Diels-Alder Cycloadditions. Preliminary Biological... von Posner, Gary H, Cho, Cheon-Gyu, Anjeh, Tizah E. N, Johnson, Neil, Horst, Ronald L, Kobayashi, Tadashi, Okano, Toshio, Tsugawa, Naoko

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A new and efficient asymmetric synthesis of an A-ring precursor to physiologically active 1α-hydroxyvitamin D3 steroids von POSNER, G. H, CARRY, J.-C, ANJEH, T. E. N, FRENCH, A. N

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BF3·OEt2 promotes fast, mild, clean and regioselective dehydration of tertiary alcohols von Posner, Gary H., Shulman-Roskes, Ellen M., Oh, Chang Ho, Carry, Jean-Christophe, Green, Julianne V., Clark, A.Brian, Dai, Haiyan, Anjeh, Tizah E.N.

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BF 3·OEt 2 promotes fast, mild, clean and regioselective dehydration of tertiary alcohols von Posner, Gary H., Shulman-Roskes, Ellen M., Oh, Chang Ho, Carry, Jean-Christophe, Green, Julianne V., Clark, A.Brian, Dai, Haiyan, Anjeh, Tizah E.N.

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