supplementary material is available for this article at 10.1007/s13659 - 011 - 0026 - 4 and is accessible for authorized users .
four new alkaloids , sinensines b  e ( 14 ) , together with one known alkaloid , sinensine ( 5 ) , were isolated from the fruiting bodies of ganoderma sinense . 
 their structures were elucidated on the basis of 1d and 2d nmr spectra analysis . 
 the structure of sinensine e was confirmed by x - ray crystallographic analysis of its acetyl product ( 4a ) . 
 electronic supplementary materialsupplementary material is available for this article at 10.1007/s13659 - 011 - 0026 - 4 and is accessible for authorized users .