... called schizandrin as well as vitamins C and E. Schizandrins have been found to act as tonics for the liver, ... chamigrene, chamigrenal, sesquicarene, (+)-ylangene. Vitamin C Lignans: Dibenzo[a, c]cyclooctene derivatives, including schzandrine A to C, schizandrol A and B, schizantherine A ... and B, gomisins D to J, K1 to K3, L1 and ...