Isobenzofuran analogs of sclerophytin A are prepared in a highly concise fashion via an aldol-cycloaldol sequence. The analogs exhibit IC
50
's as low as
1
μM in growth inhibitory studies against KB3 cells using an MTT assay. Preferred analogs have one of the following structural formulas, where R is hydrogen or a substituted or unsubstituted lower alkyl group and Ar is a substituted or unsubstituted aryl group.
Synthesis and anticancer activity of sclerophytin-inspired hydroisobenzofurans
作者:T. David Bateman、Aarti L. Joshi、Kwangyul Moon、Elena N. Galitovskaya、Meenakshi Upreti、Timothy C. Chambers、Matthias C. McIntosh
DOI:10.1016/j.bmcl.2009.10.079
日期:2009.12
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 IC50's of 1-3 mu M in growth inhibitory assays against KB3 cells. The NCI 60-cell line 5-dose assay for analog 6h revealed a GI(50) = 0.148 mu M and LC50 = 9.36 mu M for the RPMI-8226 leukemia cell line, and a GI(50) = 0.552 mu M and LC50 = 26.8 mu M for the HOP-92 non-small cell lung cancer cell line. (C) 2009 Elsevier Ltd. All rights reserved.