METHOD OF ISOLATING PHENANTHROINDOLIZIDINE ALKALOIDS FROM TYLOPHORA ATROFOLLICULATA, COMPOSITIONS COMPRISING THEM AND THEIR MEDICAL USE

    公开(公告)号:US20170312267A1

    公开(公告)日:2017-11-02

    申请号:US15142407

    申请日:2016-04-29

    CPC classification number: A61K31/4745 A61K36/27

    Abstract: A method of isolating at least one phenanthroindolizidine alkaloid, in particular with telomerase inhibitory activity, from Tylophora atrofolliculata is used to isolate and obtain for example about six to eight phenanthroindolizidine alkaloids, including at least four new phenanthroindolizidine alkaloids which have not been previously isolated. Experimental tests confirmed an exceptional telomerase inhibitory activity of the phenanthroindolizidine alkaloids isolated. A pharmaceutical composition includes at least one phenanthroindolizidine alkaloid and at least one pharmaceutical tolerable excipient. Still further, a method of treating a subject suffering from cancer includes administering at least one phenanthroindolizidine alkaloid isolated from Tylophora atrofolliculata. Also, a method of treating a subject suffering from cancer includes administering to the subject at least one phenanthroindolizidine alkaloid having certain formula.

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