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Alkaloids from Porcelia macrocarpa
M H Chaves1, L A Santos, J H Lago
1Instituto de Química, Universidade de São Paulo, São Paulo, São Paulo, 05508-900 Brazil.
Journal of Natural Products
|July 4, 2001
Abstract:
Three new azaanthracene alkaloids, 6,7-dimethoxycleistopholine (3), 5-hydroxy-6-methoxycleistopholine (4), and 5-hydroxy-6,7-dimethoxycleistopholine (5), along with 14 known alkaloids, including the new natural product 6-methoxycleistopholine (2), were isolated from a CH2Cl2 extract of the branches of Porcelia macrocarpa.