1. Department of Chemistry, University of Calgary, 2500 University Drive NW, Calgary, Alberta, Canada T2N 1N4
2. Mass Spectrometry and NMR Laboratory, Department of Chemistry, University of Calgary, 2500 University Drive NW, Calgary, Alberta, Canada T2N 1N4
3. Pacific Forestry Centre, Forestry Canada, 506 West Burnside Road, Victoria, British Columbia, Canada V8Z 1M5