New alkaloids from the twigs and leaves of tabernaemontana divaricata and their neuroprotective effects.

Two novel monoterpenoid quinoline alkaloids, tabernacatines A and B (1 and 2), and a new monoterpenoid indole alkaloid, tabernacatine C (3), along with three known alkaloids (4 - 6), were isolated from the twigs and leaves of Tabernaemontana divarica…

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