Unknown

Dataset Information

0

Chiral linkers to improve selectivity of double-headed neuronal nitric oxide synthase inhibitors.


ABSTRACT: To develop potent and selective nNOS inhibitors, new double-headed molecules with chiral linkers that derive from natural amino acids or their derivatives have been designed. The new structures contain two ether bonds, which greatly simplifies the synthesis and accelerates structure optimization. Inhibitor (R)-6b exhibits a potency of 32nM against nNOS and is 475 and 244 more selective for nNOS over eNOS and iNOS, respectively. Crystal structures show that the additional binding between the aminomethyl moiety of 6b and the two heme propionates in nNOS, but not eNOS, is the structural basis for its high selectivity. This work demonstrates the importance of stereochemistry in this class of molecules, which significantly influences the potency and selectivity of the inhibitors. The structure-activity information gathered here provides a guide for future structure optimization.

SUBMITTER: Jing Q 

PROVIDER: S-EPMC3790268 | biostudies-literature | 2013 Oct

REPOSITORIES: biostudies-literature

altmetric image

Publications

Chiral linkers to improve selectivity of double-headed neuronal nitric oxide synthase inhibitors.

Jing Qing Q   Li Huiying H   Chreifi Georges G   Roman Linda J LJ   Martásek Pavel P   Poulos Thomas L TL   Silverman Richard B RB  

Bioorganic & medicinal chemistry letters 20130814 20


To develop potent and selective nNOS inhibitors, new double-headed molecules with chiral linkers that derive from natural amino acids or their derivatives have been designed. The new structures contain two ether bonds, which greatly simplifies the synthesis and accelerates structure optimization. Inhibitor (R)-6b exhibits a potency of 32nM against nNOS and is 475 and 244 more selective for nNOS over eNOS and iNOS, respectively. Crystal structures show that the additional binding between the amin  ...[more]

Similar Datasets

| S-EPMC4204799 | biostudies-literature
| S-EPMC3960082 | biostudies-literature
| S-EPMC3072459 | biostudies-literature
| S-EPMC3983353 | biostudies-literature
| S-EPMC4514563 | biostudies-literature
| S-EPMC2758698 | biostudies-literature
| S-EPMC3174355 | biostudies-literature
| S-EPMC6303682 | biostudies-literature
| S-EPMC1987713 | biostudies-literature
| S-EPMC2001161 | biostudies-literature