107259-45-0 Butanoic acid, 3-methyl-, 3',4',5',6'-tetrahydro-4-(1,3-pentadiynyloxy)spiro(6-oxabicyclo(3.1.0)hex-3-ene-2,2'-(2H)pyran)-5'-yl ester, (1R-(1alpha,2beta(R*),5alpha))- Lactiflorasyne