Process for obtaining betulinic acid

Details Process for obtaining betulinic acid Process for obtaining betulinic acid

2005-09-13

2005-09-13

Badio, Barbara P. (Department: 1617)

Organic compounds -- part of the class 532-570 series

Organic compounds

Cyclopentanohydrophenanthrene ring system containing

Reexamination Certificate

active

06943260

ABSTRACT:
The invention relates to an improved process for obtaining highly pure, crystalline betulinic acid from a methanolic extract of ground plane tree cortex and/or plane tree bark, as well as highly pure crystalline betulinic acid which is solvated with one equivalent of ethanol.

REFERENCES:
patent: 6175035 (2001-01-01), Draeger et al.
patent: 6264998 (2001-07-01), Ramadoss et al.
patent: 6569842 (2003-05-01), Pezzuto et al.
patent: 356057780 (1981-05-01), None
patent: WO-0110885 (2001-02-01), None
patent: WO-0110885 (2001-02-01), None
Bruckner et al., “Occurrence of Betulinic Acid in the Bark of the Plane Tree.” J. Chem. Soc., (181), pp. 948-951, 1948.
V. Bruckner et al; “Occurence of Betulinic Acid in the Bark of the Plane Tree”; J. Chem Soc. (1948) No. 181; pp. 948-951.
Robertson, A. et al; Polyterpenoid Compounds. Part. I. Betulic Acid from Comus florida, L.; Journal of Chemical Society; 1939; pp. 1267-1273.

Affiliated with

Also associated with

Rating

Process for obtaining betulinic acid does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for obtaining betulinic acid, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for obtaining betulinic acid will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3402560