Antitumor activity of some microbial and chemical transformation products of anguidine (4,15-diacetoxyscirpene-3-ol).

The in vivo antitumor activities, as measured by inhibition of transplanted P-388 and L-1210 leukemia in mice, have been determined for a series of analogs of anguidine including triacetoxyscirpenol, the three diacetoxyscirpenols, the three monoacetoxyscirpenols, and scirpenetriol. An acetoxy function at position 15 appears to be required for good activity.