5023-08-5Relevant articles and documents
Total synthesis of cordatanine, structural reassignment of drymaritin, and anti-inflammatory activity of synthetic precursor
Fang, Hsin Wei,Liao, Yu-Ren,Hwang, Tsong-Long,Shieh, Po-Chuen,Lee, Kuo-Hsiung,Hung, Hsin-Yi,Wu, Tian-Shung
, p. 3822 - 3824 (2015)
Abstract In this study, cordatanine, with a canthin-6-one skeleton, was totally synthesized in four steps via a Pictet-Spengler reaction using tryptamine and methyl glyoxylate with a total yield of 8%. The NMR spectra of synthesized cordatanine compared well with those of drymaritin isolated by Hsieh et al., confirming the need to revise the original structural assignment. In addition, kumujian A, a synthetic intermediate, showed significant anti-inflammatory effects, inhibiting both superoxide anion generation (IC50 4.87 μg/mL) and elastase release (IC50 6.29 μg/mL).