Synthesis of a simplified bryostatin C-ring analogue that binds to the CRD2 of human PKC-alpha and construction of a novel BC-analogue by an unusual Julia olefination process |
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Authors: | Hale Karl J Frigerio Mark Manaviazar Soraya Hummersone Marc G Fillingham Ian J Barsukov Igor G Damblon Christian F Gescher Andreas Roberts Gordon C K |
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Institution: | The Christopher Ingold Laboratories, University College London, 20 Gordon Street, London WC1H 0AJ, England. k.j.hale@ucl.ac.uk |
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Abstract: | structure: see text] The synthesis of two truncated bryostatin analogues 2 and 3 is described. High-field NMR measurements on the C-ring analogue 3 in C(2)H(3)CN containing 25% (2)H(2)O have shown that it binds to the CRD2 of human PKC-alpha at virtually the same position as phorbol-13-acetate (PA) and bryostatin 1 (1). NMR titration studies have also revealed that 3 binds to the CRD2 with a potency similar in magnitude to PA but much less potently than 1. |
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