lupan-3beta,20-diol => (S)-2,3-epoxysqualene + H2O
lupan-3beta,20-diol => (s)-2,3-epoxysqualene + h2o
lupan-3beta,20-diol => (S)-2,3-epoxysqualene + H2O
lupan-3beta,20-diol => (s)-2,3-epoxysqualene + h2o