Enhancement of Hydrophobic Interactions and Hydrogen Bond Strength by Cooperativity: Synthesis, Modeling, and Molecular Dynamics Simulations of a Congeneric Series of Thrombin Inhibitors
作者:Laveena Muley、Bernhard Baum、Michael Smolinski、Marek Freindorf、Andreas Heine、Gerhard Klebe、David G. Hangauer
DOI:10.1021/jm9016416
日期:2010.3.11
that engages in a hydrogenbond with Gly 216. The first series of inhibitors has a m-chlorobenzyl moiety binding in the S1 pocket, and the second has a benzamidine moiety. When the adjacent hydrogenbond is present, the enhanced binding affinity per Å2 of hydrophobic contact surface in the S3 pocket improves by 75% and 59%, respectively, over the inhibitors lacking this hydrogenbond. This improvement
a variety of novel peptide derivatives for chemical biology studies and potential pharmaceutical applications. The catalytic system tolerates a variety of functional groups including secondary amides, ester, nitrile, thiomethyl, and hydroxy groups. This convenient hydrosilylation reaction proceeds at ambient conditions and is operationally safe because no air‐sensitive reagents or highly reactive metal
This application discloses a composition comprising a malodor compound and an anti-odor ingredient effective for reducing the presence or production of malodor. The composition may be topically applied to a subject and is useful for cosmetic conditions, pharmaceutical indications, or other objectives.
A One-Pot, fast, and efficient amidation of carboxylic acids, α-amino acids and sulfonic acids using pph<sub>3</sub>/<i>n</i>-chlorobenzotriazole system
作者:Hamed Rouhi-Saadabad、Batool Akhlaghinia
DOI:10.1080/10426507.2015.1024313
日期:2015.10.3
Triphenylphosphine (PPh3)/N-chlorobenzotriazole (NCBT), and amine (primary and secondary aliphatic amines and also substituted anilines) in CH2Cl2 efficiently converted carboxylic acids, -amino acids, and sulfonic acids to the corresponding amides and sulfonamides at room temperature. Good to excellent yields, inexpensive, and fast reaction conditions are the important features of this procedure.
CHALLIS, BRIAN C.;MILLIGAN, JAMIE R.;MITCHELL, ROBERT C., J. CHEM. SOC. PERKIN TRANS. PT 1,(1990) N1, C. 3103-3108
作者:CHALLIS, BRIAN C.、MILLIGAN, JAMIE R.、MITCHELL, ROBERT C.