- Phosphinate, sulfonate, and sulfonamidate dipeptides as potential inhibitors of Escherichia coli aminopeptidase N
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In an effort to prepare novel inhibitors of bacterial aminopeptidase N (PepN), the phosphinate, propenylphosphinate, decylphosphinate, sulfonate, and sulfonamidate analogs of Ala-Ala were synthesized and tested as inhibitors. Phosphinate 1 was shown to inhibit PepN with a Ki of 10 μM, and propenylphosphinate 2 and decylphosphinate 3 inhibited PepN with a Ki of ca. 1 μM. Sulfonate and sulfonamidate analogs did not inhibit PepN.
- Yang, Ke-Wu,Golich, Frank C.,Sigdel, Tara K.,Crowder, Michael W.
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p. 5150 - 5153
(2007/10/03)
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- Solid phase acylation of aminosulfonic acids
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This invention is directed to the acylation of aminosulfonic acids in the solid phase. Two discrete, sequential chemical reactions occur, i.e. (1) the neutralization of the aminosulfonic acid, and (2) the subsequent amine acylation, to produce an improved neutralized acyl-aminosulfonic acid at a reduced cost. Aminosulfonic acids having the general formula HO3 S-A-NH2 are acylated to neutralized acyl-aminosulfonic acids having the general formula RCONH-A-SO3 M, where A is an unsubstituted or substituted aliphatic, aromatic or heteroaromatic group and M is a neutralizing agent moiety. The yield is virtually quantitative.
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