Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Yuji Narukawa and Keiichiro Hatano and Tadahiro Takeda,A novel diterpenoid with a rearranged neoclerodane skeleton from Salvia leucantha CAV,Journal of natural medicines,13403443,Tokyo : Springer Japan Production Department,2006,60,3,206-209,https://cir.nii.ac.jp/crid/1522825130568173184,