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Top: A portion of the DEPT 135 13C NMR spectrum of 8 in CD3OD. Bottom: A portion of the 13C NMR spectrum of 8 in CD3OD. The lines near 73 ppm are due to tertiary carbons bearing OH groups and the lines between 76–79 ppm are due to secondary carbons bearing OH groups. The spectral complexity occurs because 8 is a mixture of regioisomers and stereoisomers.
