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Two novel steroidal derivatives from chloroform-soluble extract of Hoya longifolia
Pawan K Srivastava1, Mukul R Gupta1, Naveen K Khare1
1a Department of Chemistry , University of Lucknow , Lucknow 226007 , India.
Natural Product Research
|July 17, 2015
Abstract:
The structures of two novel steroidal derivatives (1 and 4) were elucidated. Steroidal derivatives namely fologenin (1) and hoyagenin (4) have been isolated from chloroform-soluble extract of the whole plant of Hoya longifolia (family: Asclepiadaceae), and their structures were determined by using (1)H NMR, (13)C NMR, (1)H-(1)H COSY and FAB-MS techniques as well as chemical degradation and derivatisation.