Diacylglycerol Compounds from Barks of Betula platyphylla with Inhibitory Activity against Acyltransferase  

作　　者：Nan Zhang Na Li Ya-nan Sun Jia-lin Li Shan-shan Xing Zhen-dong Tuo Long Cui 

机构地区：[1]College of Pharmacy, Beihua University [2]College of Pharmacy, Chungnam National University

出　　处：《Chinese Herbal Medicines》2014年第2期164-167,共4页中草药（英文版）

基　　金：Science and Technology Development Program of Jilin Province(201205099)

摘　　要：Objective To identify the active compounds from the barks of Betula platyphylla for inhibitory on diacylglycerol acyltransferase（DGAT1）.Methods Bioassay-guided fractionation resulted in the isolation of DGAT1 inhibitory activity of lupane triterpenes.Results Ten compounds were identified as lupenone（1）,lupeol（2）,betulinic acid（3）,betulinaldehyde（4）,betulin（5）,3-deoxybetulonic acid（6）,glochidonol（7）,lup-20/29-ene-1β/3β-diol（8）,3α-hydroxy-lup-20（29）-en-23,28-dioic acid（9）,and 3α,11α-dihydroxy-23-oxo-lup-20（29）-en-28-oic acid（10）.Compounds 3-6,9,and 10 inhibited DGAT1 with IC50 values ranging from（11.2±0.3）to（38.6±1.2）μmol/L.Conclusion Compounds 6,9,and 10 are first isolated from the barks of B.platyphylla.,and compounds 3-6,9,and 10 from the barks of B.platyphylla are responsible for the inhibition on DGAT1.Objective To identify the active compounds from the barks of Betula platyphylla for inhibitory on diacylglycerol acyltransferase（DGAT1）.Methods Bioassay-guided fractionation resulted in the isolation of DGAT1 inhibitory activity of lupane triterpenes.Results Ten compounds were identified as lupenone（1）,lupeol（2）,betulinic acid（3）,betulinaldehyde（4）,betulin（5）,3-deoxybetulonic acid（6）,glochidonol（7）,lup-20/29-ene-1β/3β-diol（8）,3α-hydroxy-lup-20（29）-en-23,28-dioic acid（9）,and 3α,11α-dihydroxy-23-oxo-lup-20（29）-en-28-oic acid（10）.Compounds 3-6,9,and 10 inhibited DGAT1 with IC50 values ranging from（11.2±0.3）to（38.6±1.2）μmol/L.Conclusion Compounds 6,9,and 10 are first isolated from the barks of B.platyphylla.,and compounds 3-6,9,and 10 from the barks of B.platyphylla are responsible for the inhibition on DGAT1.

关 键 词：Betucaseae Betula platyphylla diacylglycerol acyltransferase1 lupane triterpenes 

分 类 号：R285[医药卫生—中药学]