
TY  - JOUR
A1  - Begum, S 
A1  - Adil, Q 
A1  - Siddiqui, BS 
A1  - Siddiqui, S 
T1  - Synthesis of 2&#946;-Hydroxyursolic Acid and Other Ursane Analogs From Ursonic Acid
JF  - Australian Journal of Chemistry
JO  - Aust. J. Chem.
Y1  - 1993
VL  - 46
IS  - 7
SP  - 1067
EP  - 1071
KW  - 
UR  - https://doi.org/10.1071/CH9931067 
N2  - Synthesis of the natural product 2&#946;-hydroxyursolic acid (6) has been achieved through reaction of ursonic acid (1) with SeO2, and subsequent stereospecific reduction of the 2,3-diketo derivative (3) and its tautomer  diosphenol (4), with NaBH4 under mild reaction conditions. Several other analogues (2), (5), (7) and (8) of the ursane series have also been obtained during these reactions. 
ER  -

