Panurensine and norpanurensine, new bisbenzylisoquinoline alkaloids from Abuta panurensis Eichler, have been assigned structures 1 and 2, respectively, on the basis of spectroscopic and chemical evidence. They are the first examples of bisbenzylisoquinolines containing both a 5-7′ and an 11-12′ ether bridge. © 1975, American Chemical Society. All rights reserved.