(13S)-vitexifolin A + diphosphate => 9alpha-copalyl diphosphate + H2O
(13s)-vitexifolin a + diphosphate => 9alpha-copalyl diphosphate + h2o
(13S)-vitexifolin A + diphosphate => 9alpha-copalyl diphosphate + H2O
(13s)-vitexifolin a + diphosphate => 9alpha-copalyl diphosphate + h2o