Abstract

Two new dammarane-type triterpenoids, dammar-3α,12(R),20(S)-triol-12,32(R);20,32-diepoxy-25-methy-25-en-tridecacyclic ether (1) and (23E)-12β,20(R),25(S),26-tetrahydroxydammar-23-en-3-one (2) were isolated from the green walnut husks of Juglans mandshurica Maxim together with six known compounds. Their structures were elucidated through extensive spectroscopic analyses and by comparison with the literature, and the cytotoxic activities of these compounds were evaluated.

中文翻译：

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来自胡桃核桃壳的两种新的达玛烷型三萜类化合物

摘要

两种新的达玛烷型三萜，dammar-3 α ,12( R ),20( S )-triol-12,32( R );20,32-diepoxy-25-methy-25-en-tridecacyclic ether ( 1 )和 (23 E )-12 β ,20( R ),25( S ),26-tetrahydroxydammar-23-en-3-one ( 2 )与六种已知化合物一起从胡桃的绿色核桃壳中分离得到。通过广泛的光谱分析和与文献的比较，阐明了它们的结构，并评估了这些化合物的细胞毒活性。