Three structurally related sets of hydroisobenzofuran analogs of sclerophytin A were prepared in three or four steps from (S)-(+)-carvone via an aldol-cycloaldol sequence. The most potent members of each set of analogs exhibited IC(50)'s of 1-3 microM in growth inhibitory assays against KB3 cells. The NCI 60-cell line 5-dose assay for analog 6h revealed a GI(50)=0.148 microM and LC(50)=9.36 microM for the RPMI-8226 leukemia cell line, and a GI(50)=0.552 microM and LC(50)=26.8 microM for the HOP-92 non-small cell lung cancer cell line.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3276365 | PMC |
| http://dx.doi.org/10.1016/j.bmcl.2009.10.079 | DOI Listing |
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