A DIRECTED METALATION ROUTE TO THE ZWITTERIONIC INDOLE ALKALOIDS. SYNTHESES OF INDOLOQUINOLIZINE, FLAVOPEREIRINE, FLAVOCARPINE, AND DIHYDROFLAVOPEREIRINE
A protocol involving beta-lithiation of 2-(2-pyridinyl)indoles (4->5) and subsequent reaction with bromoacetaldehyde or oxirane has led to syntheses of the alkaloids indoloquinolizine (1), flavopereirine (2), flavocarpine (21), and dihydroflavopere
Gribble, Gordon W.,Johnson, David A.
p. 5259 - 5262
(2007/10/02)
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