Synthetic studies directed toward ergot alkaloids, (±)-6,7-secoagroclavine, (±)-chanoclavine-1, (±)-chanoclavine-II, and (±)-agroclavine-I, by an efficient and common synthetic route

Heterocycles

Volumn 72, Issue , 2007, Pages 599-620

  Yamada, Fumio ^a   Makita, Yoshihiko ^a   Somei, Masanori ^a  

^a KANAZAWA UNIVERSITY   (Japan)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 34547840145     PISSN: 03855414     EISSN: None     Source Type: Journal    
DOI: 10.3987/com-06-s(k)55     Document Type: Article

References (44)

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42. Definition of Originality Rate (OR). Somei M., Fukui Y., Hasegawa M., Oshikiri N., and Hayashi T. Heterocycles 53 (2000) 1725. The OR is a proportion of the number of originally developed steps to that of synthetic steps and calculated by the following formula. OR = 100 × frac(The Number of Newly Developed Steps + {(1, (by a New Route); 0, (by a Known Route)), Total Number of Synthetic Steps + 1)
43. Somei M. Yakugaku Zasshi 108 (1988) 361. The OR is a proportion of the number of originally developed steps to that of synthetic steps and calculated by the following formula. OR = 100 × frac(The Number of Newly Developed Steps + {(1, (by a New Route); 0, (by a Known Route)), Total Number of Synthetic Steps + 1)
44. Somei M. J. Synth. Org. Chem. 40 (1982) 387. The OR is a proportion of the number of originally developed steps to that of synthetic steps and calculated by the following formula. OR = 100 × frac(The Number of Newly Developed Steps + {(1, (by a New Route); 0, (by a Known Route)), Total Number of Synthetic Steps + 1)