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Hydroxyl groups hydrogen bonds

In summary, the results with pepsin extend the renin data reported by Szelke and Boger and strongly support the postulate of Boger that statine is an analog of a dipeptide tetrahedral intermediate.(20) The C-3 hydroxyl group hydrogen bonds to Asp-213 (220) and Asp-33(35) and displaces a "bound" water molecule from the active site. The isobutyl side chain of statine corresponds to the PI substituent that binds to the SI subsite on the enzyme. The C-1 and C-2 atoms of statine serve to span... [Pg.220]

A from zinc ion in the native enzyme). This hydroxyl group hydrogen-bonds directly to the donor atom in the anion complexes. The sulfonamide complexes... [Pg.93]

On the other hand, in the (1,2) isomer, because of the proximity of the two hydroxyl groups, hydrogen bonding of the... [Pg.597]

Hydroxyl groups exert a directive effect on epoxidation and favor approach from the side of the double bond closest to the hydroxyl group. Hydrogen bonding between the hydroxyl group and the reagent evidently stabilizes this transition state. [Pg.768]

See other pages where Hydroxyl groups hydrogen bonds is mentioned: [Pg.232]    [Pg.229]    [Pg.241]    [Pg.250]    [Pg.231]    [Pg.441]    [Pg.210]    [Pg.335]    [Pg.221]    [Pg.62]    [Pg.613]    [Pg.120]    [Pg.239]    [Pg.14]    [Pg.536]    [Pg.250]    [Pg.239]    [Pg.1958]    [Pg.106]    [Pg.4]    [Pg.78]    [Pg.148]    [Pg.150]    [Pg.177]    [Pg.220]    [Pg.355]   
See also in sourсe #XX -- [ Pg.27 ]



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Hydrogen hydroxyl groups

Hydrogen hydroxylation

Hydrogenation group

Hydroxyl bond

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