H. C. Hu, Q. Guo, R. Pastor
1988
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Journal
Chinese Journal of Organic Chemistry
Abstract
The structure of a plant growth substance (Calonyctin A) isolated from dry leaves of Calonyction aculeatum L. House has been determined to be a mixture of two glycoside hemologues, either of which contains four rhamnoses and differs with each other only in molecular weight by 28 a. m. u's. In this paper we report the configuration of the four sugars and how they are linked together, The key steps of this study involve the use of DEPT ~(13)C NMR, ~1H-~1H Correlation 2D NMR, ~1H-~1H NOESY NMR, ~(13)C-~1H COSY 2D NMR and FAB-MS techniques.