(1R*,4R*,6S*)-3,3-dimethyl-2-oxabicyclo[4.4.0]dec-4-yl acetate

[(2R,3aR,7aS)-2,3,3a,4,5,6,7,7a-octahydro-1-benzofuran-2-yl]methyl 2-methylpropanoate

3,5-二甲基-1,2,4-噁二唑

7-乙酰氧基香豆素

2',3',5'.-tri-O-acetyl-8-bromoguanosine