Four new hydrolyzable tannins, praecoxins A (1), B (2), C (3) and D (4), were isolated from leaves of Stachyurus praecos SIEB. et ZUCC (Stachyuraceae), and their structures were elucidated.
从 Stachyurus praecos SIEB. et ZUCC (Stachyuraceae) 的叶片中分离出四种新的可
水解
单宁,即 praecoxins A (1)、B (2)、C (3) 和 D (4),并阐明了它们的结构。