Three clerodane diterpenoids from Croton eluteria Bennett

Three furanoid clerodanes have been isolated from the stem bark of Croton eluteria Bennett. Their structures have been established by spectroscopic methods. The compounds were named cascarillin B (7α-acetoxy-3,4,15,16-diepoxy-12-oxo-cleroda-13(16),14-dien-20-al), cascarillin C (7α-acetoxy-15,16,12,20-diepoxy-20-hydroxy-cleroda-3,4,13(16),14-triene) and cascarillin D (7α-acetoxy-3,4,15,16-diepoxy-cleroda-13(16),14-dien-20-al).