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. Author manuscript; available in PMC: 2010 Jul 9.
Published in final edited form as: Phytochem Rev. 2006 Jun;5(2-3):433–444. doi: 10.1007/s11101-006-9006-4

Fig. 2.

Fig. 2

Proposed mechanism for cytochrome P450-mediated conversion of taxa-4(5),11(12)-diene and taxa-4(20),11(12)-diene to taxa-4(20),11(12)-dien-5α-ol involving hydrogen abstraction at C5 or C20 to provide the common allylic radical, followed by oxygen insertion at the C5α-face. Taxa-4(5),11(12)-diene and taxa-4(20),11(12)-diene isomerization was not observed (Jennewein et al. 2004)