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. Author manuscript; available in PMC: 2011 Jul 1.
Published in final edited form as: Tetrahedron. 2010 Jul 1;66(27-28):4961–4964. doi: 10.1016/j.tet.2010.04.110

Table 1.

Results of selective reduction of ester 6.

Reagent Solvent Temp.
(°C)		 Time
(h)		 Yield
(%)
1 DIBAL-H CH2Cl2, hexane 0 1 94
2 BH3·Me2S THF 60 2 93
3 LiAlH4 Dimethoxyethane 0 2 78
4 NaBH4, CaCl2 THF 25 24 74
5 LiBH4-9BBN THF, toluene 100 24 0