C - Chemistry – Metallurgy – 07 – J
Patent
C - Chemistry, Metallurgy
07
J
C07J 63/00 (2006.01) A01N 45/00 (2006.01) C07C 61/29 (2006.01) A01N 65/00 (2006.01)
Patent
CA 2271965
A method of producing betulinic acid from the bark of plane trees by fractional extraction with a solvent of medium polarity and subsequent recrystallization out of methanol.
Galgon Tino
Neubert Reinhard
Wohlrab Wolfgang
Draeger Birgit
Smart & Biggar
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