The structures of murrayastine (1), murrayaline (2), and pyrayafoline (3), new carbazole alkaloids from the stem bark of Murraya euchrestifolia Hayata (Rutaceae) collected in Taiwan, have been determined by spectral and synthesis experiments. This paper describes their isolation and structure elucidation. This is the first isolation of a carbazole alkaloid having a one-carbon unit at the ring considered biogenetically to be derived from an anthranilate.