Coumarins from Murraya exotica collected in Egypt.

Four new coumarins, isomurralonginol senecioate (1), isomurralonginoic acid (2), murrangatin 2'-formate (3), and meranzin hydrate 2'-palmitate (4), were isolated from the vegetative branches of Murraya exotica together with 33 known compounds. The structures of the new compounds were determined from chemical and spectroscopic data.

Two new dimeric acridone alkaloids from Glycosmis citrifolia.

Two new acridone dimers, glycobismines-F (1) and -G (2), were isolated from the roots of Glycosmis citrifolia collected in Taiwan. The structures of the new compounds were determined based on spectral analysis.