(R)-(+)-Isotembetarine, a Quaternary Alkaloid from Zanthoxylum nitidium

(R)-(+)-Isotembetarine, a Quaternary Alkaloid from Zanthoxylum nitidium (<i>R</i>)-(+)-Isotembetarine, a Quaternary Alkaloid from <i>Zanthoxylum nitidium</i> Two New Benzophenanthridine Alkaloids from <i>Zanthoxylum nitidum</i> Two New Benzophenanthridine Alkaloids from Zanthoxylum nitidum 365. An examination of the rutaceae of Hong Kong. Part II. The alkaloids, nitidine and oxynitidine, from Zanthoxylum nitidum Dihydrobenzo[<i>c</i>]phenanthridine Alkaloids from Stem Bark of <i>Zanthoxylum nitidum</i> Dihydrobenzo[<i>c</i>]phenanthridine Alkaloids from Stem Bark of <i>Zanthoxylum nitidum</i> Two Novel Alkaloids from <i>Zanthoxylum nitidum</i> Benzophenanthridine alkaloids from Zanthoxylum rhoifolium A New Benzophenanthridine Alkaloid from Zanthoxylum nitidum