| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 5289644 | Tetrahedron Letters | 2006 | 4 Pages |
Abstract
1-Benzenesulfonylindole-2,3-dicarboxylic anhydride was reacted with methyl 1-benzenesulfonylindole-2-acetate to give the corresponding 2-acylindole-3-carboxylic acid as the sole product in high yield, which could be converted to caulersin in four steps. In a similar manner, three isomers A, B, and C were synthesized by reaction of indole-2,3-dicarboxylic anhydrides with methyl indoleacetates.
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Authors
Yasuyoshi Miki, Yosiyuki Aoki, Hideaki Miyatake, Toshie Minematsu, Hajime Hibino,