请哪位高手帮忙上传一下面的文献或具有我所附图片上化合物详细1H-NMR、13C-NMR数据的其他文献，非常感谢！！！
A new coumarin from Clausena excavata
By Laphookhieo, Surat; Sripisut, Tawanan; Prawat, Uma; Karalai, Chatchanok
From Heterocycles (2009), 78(8), 2115-2119. Language: English, Database: CAPLUS