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[Study on steroidal and triterpenoid constituents from Cissus pteroclada]
Guang-Yu Pan1, Wen-Fei Li2, Pei Luo2
1Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources of State Education Ministry, College of Chemistry & Chemical Engineering, Guangxi Normal University, Guilin 541004, China. panguangyu99@sina.com
Objective:
To study the chemical constituents of ethnical drug Cissus pteroclada.
Methods:
Silica gel column chromatography was employed to separate the constituents from EtOAc extraction of Cissus pteroclada and their structures were identified by physicochemical properties as well as spectrum analysis.
Results:
Five steroidal compounds and 2 triterpenoid constituents were obtained. Their structures were identified as: stigmasterol (1), stigmasterol acetate (2), stigmasta-5, 22-dien-3-O-beta-D-glucopyranoside (3), beta-sitosterol (4), daucousterol (5), taraxerone (6), oleanolic acid (7).
Conclusion:
All the compounds are isolated from this plant for the first time except for compound 4 and 5. Compounds 1 - 3 are obtained from this genus for the first time.
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