Analogs of sarcodictyin and eleutherobin

Organic compounds -- part of the class 532-570 series – Organic compounds – Carbohydrates or derivatives

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514 28, 514 63, 514277, 514365, 514374, 514385, 514396, 514406, 514461, 514469, 514691, 514703, 536 174, 548146, 548215, 5483001, 549456, 549462, 549463, C07H 1524, A61K 3170, A61K 3134, C07D30777

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059657189

ABSTRACT:
Sarcodictyin A and B, eleutherobin, and bioactive analogs thereof synthesized using solid phase and solution phase chemistries. The synthetic method employs an attachment of common precursors, e.g., compounds 1880 or 200, on a solid support for generating conjugates 230 and 240, followed by standard chemical manipulations. A combinatorial library of sarcodictyins and eletherobin analogs was constructed with modified C-8 ester, C-15 ester and C-4 ketal functionalities and was screened for activity with respect to tubulin polymerization and cytotoxic activity against tumor cells, including Taxol-resistant lines. Compounds 600, 610, 630, 660-700, 730, 760, 850, and 920 were identified to be of equal or superior biological activities as compared to their corresponding natural product.

REFERENCES:
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D'Ambrosio et al., "189. Sarcodictyin A and Sarcodictyin B, Novel Diterpenoidic Alcohols Esterfied by (E)-N(1)-Methylurocanic Acid. Isolation from the Mediterrranean Stolonifer Sarcodictyon roseum", Helvetica Chimica Acta, vol. 70: 2019-2027, 1987.
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