Organic Letters · 2000 · 184 citations · 17 references
[reaction: see text]Reaction of indole amides 5 with tributylstannane gave spiroindolenines 9 which are readily converted into spiropyrrolidinyloxindoles. This tricyclic system is found in a number of interesting natural products.
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Scott D. Edmondson, Samuel J. Danishefsky, Laura Sepp‐Lorenzino et al. · Journal of the American Chemical Society · 1999 · 459 citations
Biologically Promising Analogues, Bioorganic Chemistry, Heterocycle Chemistry +16
Horsfiline, an oxindole alkaloid from Horsfieldia superba
Akino Jössang, Per Jossang, Hamid Hadi et al. · The Journal of Organic Chemistry · 1991 · 410 citations