ZK168281

Modify Date: 2024-04-02 13:00:04

ZK168281 Structure
ZK168281 structure
Common Name ZK168281
CAS Number 186371-96-0 Molecular Weight 510.70500
Density 1.151g/cm3 Boiling Point 652.937ºC at 760 mmHg
Molecular Formula C32H46O5 Melting Point N/A
MSDS N/A Flash Point 204.377ºC

 Use of ZK168281


ZK168281 is a 25-carboxylic ester 1α,25(OH)2D3 analog and a pure VDR antagonist with a Kd value of 0.1 nM. ZK168281 is an effective inhibitor of the coactivator (CoA) interaction of its receptor[1].

 Names

Name Ethyl (2E)-3-{1-[(1S,3R,5Z,7E,22E,24R)-1,3,24-trihydroxy-9,10-sec ochola-5,7,10,22-tetraen-24-yl]cyclopropyl}acrylate

 ZK168281 Biological Activity

Description ZK168281 is a 25-carboxylic ester 1α,25(OH)2D3 analog and a pure VDR antagonist with a Kd value of 0.1 nM. ZK168281 is an effective inhibitor of the coactivator (CoA) interaction of its receptor[1].
Related Catalog
Target

Kd: 0.1 nM (VDR)[1]

In Vitro ZK168281 resembles more the mouse constitutive androstane receptor (CAR) inverse agonist Androstanol in its ability to recruit corepressor (CoR) proteins. A salt bridge between the CoR and a conserved lysine in helix 4 of the nuclear receptor (NR) is central to this interaction, but also helix 12 was stabilized by direct contacts with residues of the CoR. Fixation of helix 12 in the antagonistic/inverse agonistic conformation prevents an energetically unfavorable free floatation of the C terminus[1].
References

[1]. Lempiäinen H, et al. Antagonist- and inverse agonist-driven interactions of the vitamin D receptor and the constitutive androstane receptor with corepressor protein. Mol Endocrinol. 2005 Sep;19(9):2258-72.

 Chemical & Physical Properties

Density 1.151g/cm3
Boiling Point 652.937ºC at 760 mmHg
Molecular Formula C32H46O5
Molecular Weight 510.70500
Flash Point 204.377ºC
Exact Mass 510.33500
PSA 86.99000
LogP 5.58010
Vapour Pressure 0mmHg at 25°C
Index of Refraction 1.578