3,12-Epoxy-12H-pyrano(4,3-j)-1,2-benzodioxepin, decahydro-10-methoxy-3,6,9-trimethyl-, (3R-(3-alpha,5a-beta,6-beta,8a-alpha,9-alpha,10-beta,12-beta,12aR*))- 80286-56-2 Arteannuin ether BRN 5948416