https://nrc-publications.canada.ca/eng/view/object/?id=5bac07b3-32fd-435d-b849-de8e06f05107
Methyl quadrangularates A-D and related triterpenes from Combretum quadrangulare. - NRC...
Methyl quadrangularates A-D and related triterpenes from Combretum quadrangulare.
a dmethyl