Two new cycloartane triterpenes were separated from the leaves of Quercus valiabilis Blume. The structures were identified as 4α,14α-dimethyl-9β,19-cycloergost-3α-yl-24-one and 4α,14α-dimethyl-9β,19-cycloergost...Two new cycloartane triterpenes were separated from the leaves of Quercus valiabilis Blume. The structures were identified as 4α,14α-dimethyl-9β,19-cycloergost-3α-yl-24-one and 4α,14α-dimethyl-9β,19-cycloergost-24(24′)-en-3α-yl-acetate.展开更多
文摘Two new cycloartane triterpenes were separated from the leaves of Quercus valiabilis Blume. The structures were identified as 4α,14α-dimethyl-9β,19-cycloergost-3α-yl-24-one and 4α,14α-dimethyl-9β,19-cycloergost-24(24′)-en-3α-yl-acetate.
