从地衣植物光肺衣中分离得到6个化合物,经光谱数据分析鉴定它们的结构分别为ergosterol(1),stictan-3β,22α-diol(2),ethyl orsellinate(3),3-0-methyl-1,2:5,6-bis-0-(1-methylethylidene)-d-chiro-inositol(4),retigeric acid B(5)和retigerie acid A(6