Uber 5 neue Umbelliferonether aus Galbanumharz1

From Galbanum beside genuin umbelliferon five umbelliferon ethers are isolated and identified as 7-{[1 R-(1alpha,2beta,4abeta,6alpha,8aalpha)] -2,6-Dihydroxy-2,5,5,8a-tetramethyldecahydronaphthalen-1-ylmethoxy} -2 H-1-benzopyran-2-one, 1, 7-{[1 R-(1alpha,4abeta,8aalpha)]-6-Hydroxy-2,5,5,8a-tetramethyl-1,4,4a,5,6,7,8,8a-octahydronaphthalen-4-on-1-ylmethoxy} - 2 H-1-benzopyran-2-one, 2,7-{[1R-(1alpha,4abeta,6beta,8aalpha)]-6-Hydroxy-2,5,5,8a -tetramethyl-1,4,4a,5,6,7,8,8a-octahydronaphthalen-1-ylmethoxy} - 2 H-1-benzopyran-2-one, 3, 7-{[1R-(1alpha,4aalpha,8aalpha)]-6-Hydroxy-2,5,5,8a -tetramethyl-1,4,4a,5,6,7,8,8a-octahydronaphthalen-1-ylmethoxy} -2 H-1-benzopyran-2-one, 4, 7-{[1R-(1a,4abeta,8abeta)]-2,5,5,8a-Tetramethyl-1,4,4a,5,6,7,8,8a-octahydronaphthalen-4-on-1-ylmethoxy}-2 H-1-benzopyran-2-one, 5.