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Park and Danishefsky

Af,A-Dimethyl amides are susceptible to attack at C=0, but can be successfully ortholithiated if kept cold. Keck and coworkers used successive ortholithiations of 23 in a route towards pancratistatin (Scheme 12) . (Park and Danishefsky s similar route using Af,A-diethylamides suffered from difficulties removing the amide group.)... [Pg.506]

One of the most interesting routes to 204 was developed in 1994 by Park and Danishefsky (Scheme 40), where a brilliant tethered Sn2 reaction was executed to install, in one go, both the Ci carbasugar nitrogen and the C5 hydroxymethyl terminus [62]. [Pg.486]

See other pages where Park and Danishefsky is mentioned: [Pg.48]    [Pg.40]    [Pg.637]    [Pg.257]    [Pg.258]    [Pg.378]    [Pg.420]    [Pg.1105]    [Pg.40]    [Pg.301]    [Pg.138]    [Pg.141]    [Pg.572]    [Pg.236]    [Pg.242]    [Pg.560]    [Pg.87]    [Pg.1558]    [Pg.221]    [Pg.81]    [Pg.1558]    [Pg.87]    [Pg.88]    [Pg.88]    [Pg.1122]   
See also in sourсe #XX -- [ Pg.29 , Pg.486 ]



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