Constituents of Flowers of Murraya Paniculata

Three new coumarins, yuehgesin‐A (1), ‐B (2) and ‐C (3) and 22 compounds—murracarpin (4), mupanidin (5), isomeranzin (6), murralongin (7), scopoletin (10), 7‐methoxy‐8‐(l′‐ethoxy‐2′‐hydroxy‐3′‐methyl‐3′‐butenyl)coumarin (11), umbelliferone (12), paniculatin (13), braylin (14), auraptenol (15), meranzin hydrate (16), minumicrolin (17), scopolin (18), caffeine (19), 3,3′,4′,5,5′,6,7‐heptamethoxyflavone (20), 4‐hy‐droxybenzaldebyde (21), p‐hydroxybenzoic acid (22), cis‐ and trans‐ferulic acid (23), cis‐ and transmethyl ferulate (24) and trans‐ethylferulate (25)—were isolated and characterized from fresh flowers of Murraya paniculata collected in Taiwan. Their structures were elucidated by spectral methods. The chemotaxonomy of Murraya paniculata is, discussed.