3-methoxy-4,6-dihydroxymorphinandien-7-one, an alkaloid from Croton bonplandianum

3-methoxy-4,6-dihydroxymorphinandien-7-one, an alkaloid from Croton bonplandianum Two New Morphinandienone Alkaloids from Croton micradenus Alkaloids and Diterpenes FromCroton moritibensis Alkaloids from Croton species. Part IV. The isolation and structure of a new proaporphine derivative from Croton linearis Jacq. Morphinandienone alkaloids from Croton flavens L Alkaloids from Croton species. Part VIII. Morphinandienone derivatives from Croton linearis Jacq. N-Methyl-2,3,6-Trimethoxymorphinandien-7-one N-oxide: A Minor Alkaloid from Alseodaphne perakensts 335. Alkaloids from Croton species. Part II. Structural determination of base A, linearisine, and crotonosine from C. linearis jacq. Alkaloids from Croton humilis Alkaloids from Croton species. Part X. Two new reduced proaporphine alkaloids