Hydrangea macrophylla'2 and Zanthoxylum schinifolium? Collinin (7) occurs, among others, in Hydrangea mcrophylla,'* 2 Zanthoxylum s~ hinifolium,~ Flindersia~ ollina,~ Flindersia mculata'and Haplophyllum alberti-regelk6 The latter coumarin has received much attention and has been proven to exert anti-platelet aggregation3s7 and anti-hepatitis B virus' activities. These interesting properties make this coumarin a useful target for organic ...
