... It appeared that the compound could very likely be an artifact resulting from the simple chemical decomposition of 6 or 9 to 10 during the sample workup. ... Chem. Jpn. 1976, 24, 437. 180, 180. 1965, 8, 230. Page 5. 50 Journal of Medicinal Chemistry, 1985, Vol. 28, No. 1 ...