![Total Syntheses and Anticholinesterase Activities of (3a
<i>S</i>
)-
<i>N</i>
(8)-Norphysostigmine, (3a
<i>S</i>
)-
<i>N</i>
(8)-Norphenserine, Their Antipodal Isomers, and Other
<i>N</i>
(8)-Substituted Analogues
<sup>†</sup>]()
Total Syntheses and Anticholinesterase Activities of (3a
<i>S</i>
)-
<i>N</i>
(8)-Norphysostigmine, (3a
<i>S</i>
)-
<i>N</i>
(8)-Norphenserine, Their Antipodal Isomers, and Other
<i>N</i>
(8)-Substituted Analogues
<sup>†</sup>Yu, Qian-sheng; Pei, Xue-Feng; Holloway, Harold W.; Greig, Nigel H.; Brossi, Arnold · Journal of Medicinal Chemistry · 1997