Two new pyrroloquinazolinoquinoline alkaloids from Peganum nigellastrum

Heterocycles

Volumn 46, Issue 1, 1997, Pages 541-546

  Ma, Zhong Ze ^a   Hano, Yoshio ^a   Nomura, Taro ^a   Chen, Ying Jic ^b  

^a TOHO UNIVERSITY   (Japan)

^b SHENYANG PHARMACEUTICAL UNIVERSITY   (China)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 0000462743     PISSN: 03855414     EISSN: None     Source Type: Journal    
DOI: 10.3987/com-97-s65     Document Type: Article

References (14)

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9. 6) at the C-5 position of 7 supported the formula (1 ) for the structure of luotonin A.
10. Luotonin B (2) has no optical activity. The photo-oxidative reaction of 1 to 2 allowed to deduce luotonin B to be an artifact. However, the compound (2) was surely recognized in the original n-hexane soluble part by a detailed HPLC analysis.
11. The photo-oxidative reaction under an exposure to sunlight was mild condition in this case. The experiment with a 100W high-pressure mercury lamp gave many products.
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