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2. Y. Kamiya, A. Sakurai, S. Tamura, N. Takahashi, K. Abe, E. Tsuchiya, S. Fukui, C. Kitada and M. Fujino, Biochem. biophys. Res. Commun.83, 1077 (1978).
3. R. Rüegg, U. Gloor, R.N. Goel, G. Ryser, O. Wiss and O. Isler, Helv. chim. Acta42, 2616 (1959).
4. Farnesol (all trans) was kindly supplied by Dr S. Terao of Chemical Research Laboratories, Takeda Chemical Industries, Ltd.
5. Abbreviations. Boc, tert-butoxycarbonyl; Z, benzyloxycarbonyl; OBzl, benzyl ester; OBut, tert-butyl ester; MBzl, p-methoxybenzyl; MBS, p-methoxybenzenesulfonyl; HONB, N-hydroxy-5-norbornene-2,3-dicarboximide; ONB, HONB ester; DCC, N,N′-dicyclohexylcarbodiimide; TFA, trifluoroacetic acid; TEA, triethylamine.