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2005
Alkaloids
U 0600
32- 183
Enantiocontrolled Synthesis of a Chiral Building Block via Diastereoselective
Rig-Closing Metathesis. — The yield and selectivity of the key metathesis step depends on the used protecting groups. The reported Tms and Tds groups give the best
combination of easy accessibility, good yields and high diastereoselectivity. The title
reaction is used for the preparation of the chiral building block (VII) which has been
transformed to the indole alkaloid (-)-eburnamonine. — (MURAKAMI, Y.; SHINDO,
M.; SHISHIDO*, K.; Synlett 2005, 4, 664-666; Grad. Sch. Pharm. Sci., Univ.
Tokushima, Sho, Tokushima 770, Japan; Eng.) — C. Oppel
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