References
- Taylor , W. I. 1965 . The Alkaloids Vol. VIII , 237 and vol. IX, page 73, 1968, R. H. P. Manske, Ed., Acaddcmic Press, N.Y.
- Bohrmann , H. , Lau-Cam , C. , Tashiro , J. and Youngken , H. W. Jr. 1969 . Phytochemistry , 8 : 645
- Arnaud , M. 1881 . Compt. Rand. Acad. Sci. , 93 : 593
- Goutarel , R. , Janot , M.-M. , Prelog , V. and Taylor , W. I. 1950 . Helv. Chim. Acta , 33 : 150 W. I. Taylor, ibid, 33, 164 (1950)
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- Ochiai , E. , Kataoka , H. , Dodo , T. and Takahashi , M. 1962 . Chem. Pharm. Bull , 10 : 76 and earlier references cited therein
- Ochiai , E. , IshiKawa , M. and Oka , Y. 1962 . Ann. Rept. ITSUU Lab , 12 : 29
- Ishikawa , M. 1958 . Chem. Pharm. Bull , 6 : 71
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- Yang , K. W. , Cannon , J. G. and Rose , J. G. 1970 . Tetrahedron Letters , : 1791
- The numbering follows that for 2,2′-indolquinuclidine alkaloids
- Sundberg , R. J. 1970 . The Chemistry of Indoles , Edited by: Bloomquist , A. T. 189 N.Y. : Academic Press .
- Simultaneously and independently the Madelung indole synthsis of similar systems was thoroughly investigated by R. L. Augustine and his group (personal communication).
- Silica gel Merck F-254 was treated with 0.1N sodium hydroxide activated at 140° for 20 min.
- Oddo , B. and Cambieri , P. 1939 . Gazz. Chim. Ital. , 69 : 19
- We thank Professor R. L. Augustine for supplying us with a small sample of dihydrocinchonamine.