The second communication of this series has shown that" pithecolobine" is a family of closely related analogues represented by the general formula 1. In the present paper a crude semiquantitative estimate of the individual components is achieved by a combination of vapor-phase chromatography and chemical degradation. The synthesis of the desoxypithecolobines 3 a and 3 b and their tetratosylates 11 a and b 11 b is described. A ...
