Synthesis of zephycandidine A from haemanthamine

Synthesis of zephycandidine A from haemanthamine Zephycandidine A, the First Naturally Occurring Imidazo[1,2-f]phenanthridine Alkaloid from Zephyranthes candida, Exhibits Significant Anti-tumor and Anti-acetylcholinesterase Activities Studies on the Alkaloids of &lt;i&gt;Zephyranthes candida&lt;/i&gt; HERB. I Amaryllidaceae alkaloids with new framework types from Zephyranthes candida as potent acetylcholinesterase inhibitors Four new Amaryllidaceae alkaloids from Zephyranthes candida Undescribed Amaryllidaceae Alkaloids from Zephyranthes citrina and Their Cytotoxicity Zephgrabetaine: A New Betaine-type Amaryllidaceae Alkaloid from Zephyranthes grandiflora Crinane and Lycorane Type Alkaloids from Zephyranthes citrina Crinane and Lycorane Type Alkaloids from Zephyranthes citrina Cytotoxic Alkaloids from the Whole Plants of <i>Zephyranthes candida</i>