The previously known neo-clerodane scutalpin J has been isolated from Scutellaria orientalis subsp. sintenisii together with a new diterpenoid, scutenisin, whose structure was established as (13R*)-6alpha,7beta-diisobutyryloxy-4alpha,18;8beta, 13-diepoxy-19-hydroxy-neo-clerodan-15,16-olide by spectroscopic means.