Indole alkaloid sulfonic acids from an aqueous extract of Isatis indigotica roots and their antiviral activity

• Main Authors: Lingjie Meng (Author), Qinglan Guo (Author), Yufeng Liu (Author), Minghua Chen (Author), Yuhuan Li (Author), Jiandong Jiang (Author), Jiangong Shi (Author)
• Format: Book
• Published: Elsevier, 2017-05-01T00:00:00Z.
• Subjects: article
• Online Access: Connect to this object online.

Six new indole alkaloid sulfonic acids (1-6), together with two analogues (7 and 8) that were previously reported as synthetic products, were isolated from an aqueous extract of the Isatis indigotica root. Their structures including the absolute configurations were determined by spectroscopic data a...