Bisgerayafoline C (3) was purified as an off-white powder. The
UV spectrum was similar to those of compounds 1 and 2. The
IR spectrum of 3 did not exhibit a broad absorption band at
3350−3460 cm−1
, suggesting the absence of a hydroxy group.
The HRFABMS showed the molecular ion at m/z 843.5098
[M]+
, which was consistent with the molecular formula