Longiborneol is naturally present in conifer but longiborneyl palmitates and stearates are unknown as natural products.
... Longiborneol is naturally present in conifer but longiborneyl palmitates and stearates are unknown as natural products. They were also detected in several embalming materials (Connan et al., 2003;Connan, 2005) but no precise structure was proposed so far. Therefore, as proposed for mixed esters of fatty acids and lupeol (Dudd and Evershed, 1999), the sesquiterpene fatty acyl esters are presumably secondary productsformed during the preparation of the organic material, for instance during heating of animal fat with a conifer oil. ...