ISDA

Entry Detail

PDB ID:

5T8E

Keywords:

Title:

Synthesis and biological evaluation of novel selective androgen receptor modulators (SARMs). Part II: Optimization of 4-(pyrrolidin-1-yl)benzonitrile derivatives

Biological Source:

Source Organism:

Homo sapiens

Host Organism:

Escherichia coli

PDB Version:

Deposition Date:

2016-09-07

Release Date:

2017-04-26

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

2.71 Å

R-Value Free:

0.23

R-Value Work:

0.17

R-Value Observed:

0.17

Space Group:

P 21 21 21

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Macromolecular Entities

Protein Blast

Polymer Type:polypeptide(L)
Description:Androgen receptor
Chain IDs:A
Chain Length:258
Number of Molecules:1
Biological Source:Homo sapiens

UniProt ID:P10275 Pfam ID:PF00104

Ligand Molecules

77U

GOL

Primary Citation

Synthesis and biological evaluation of novel selective androgen receptor modulators (SARMs). Part II: Optimization of 4-(pyrrolidin-1-yl)benzonitrile derivatives.

Asano, M, Hitaka, T, Imada, T, Yamada, M, Morimoto, M, Shinohara, H, Hara, T, Yamaoka, M, Santou, T, Nakayama, M, Imai, Y, Habuka, N, Yano, J, Wilson, K, Fujita, H, Hasuoka, A.Show

Bioorg. Med. Chem. Lett. 27 1897 1901 (2017)

PMID: 28363748 DOI: 10.1016/j.bmcl.2017.03.038

Abstact

We recently reported a class of novel tissue-selective androgen receptor modulators (SARMs), represented by a naphthalene derivative A. However, their pharmacokinetic (PK) profiles were poor due to low metabolic stability. To improve the PK profiles, we modified the hydroxypyrrolidine and benzonitrile substituents of 4-(pyrrolidin-1-yl)benzonitrile derivative B, which had a comparable potency as that of compound A. This optimization led us to further modifications, which improved metabolic stability while maintaining potent androgen agonistic activity. Among the synthesized compounds, (2S,3S)-2,3-dimethyl-3-hydroxylpyrrolidine derivative 1c exhibited a suitable PK profile and improved metabolic stability. Compound 1c demonstrated significant efficacy in levator ani muscle without increasing the weight of the prostate in an in vivo study. In addition, compound 1c showed agonistic activity in the CNS, which was detected using sexual behavior induction assay.

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