摘要：

AIM To study the chemical constituents of Cladoniae stellardis(Opiz.) collected from the Inner Mongolia Autonomous Region.METHODS Having obtained the ethanolic extract of Cladoniae stellardis(Opiz.) with petro-ether,ethyl acetate and n-butanol,gel column,recrystallization and HPLC analysis were subjected to purify the extracts and their structure was determined.RESULTS Thirteen compounds were isolated and identified as usuic acid(1),3-hydroxy-4-(methoxycarbonyl)-5-pentylphenyl 2,4-dihydroxy-6-pentylbenzoate(2),atranorin(3),3-hydroxy-4-(methoxycarbonyl)-2,5-dimethylphenyl 2,4-dihydroxy-3,6-dimethylbenzoate(4),uthyl haematommate(5),succinic acid(6),ethyl myristate(7),α-amyrin acetate(8),methyl 2,4-dihydroxy-3,6-dimethyl benzoate(9),methyl 3-formyl-2,4-dihydroxy-6-methyl benzoate(10),2-hydroxy-4-methoxy-6-n-pentylbenzoic acid(11),methyl 2-hydroxy-4-methoxy-6-pentylbenzoate(12),ethyl 2-hydroxy-4-ethoxy-6-pentylbenzoate(13).CONCLUSION Compounds 2,4,6,7,8,10,12,and 13 are isolated from this plant for the first time.

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