@article{oai:kanazawa-u.repo.nii.ac.jp:00014854,
 author = {Takahashi, Kotaro and Takani, Masako and Wada, Yoshikazu},
 issue = {5},
 journal = {Chemical & pharmaceutical bulletin},
 month = {May},
 note = {The structure of a new alkaline degration product of 1-dihydrousnic acid was elucidated as 5-acety-1,2,3,3a,7,7a-hexahydro-2,6-dihydroxy-1,2,3a-trimethyl-4-oxo-4H-inden-3,3-dicarboxylic acid (I) by chemical and spectral studies, together with X-ray analysis. The mechanism of formation of I from 1-dihydrousnic acid is discussed., 金沢大学大学院自然科学研究科分子作用学, 金沢大学薬学部},
 pages = {1590--1596},
 title = {Usnic Acid. XVI. Alkaline Degradation of Dihydrousnic Acid},
 volume = {28},
 year = {1980}
}