retosiban   Click here for help

GtoPdb Ligand ID: 8403

Synonyms: GSK-221,149-A | GSK-221149A | GSK221149A
PDB Ligand
Compound class: Synthetic organic
Comment: Retosiban is a investigational non-peptide oxytocin antagonist [3-4].
Click here for help
2D Structure
Click here for help
Click here for structure editor
Physico-chemical Properties
Click here for help
Hydrogen bond acceptors 8
Hydrogen bond donors 1
Rotatable bonds 7
Topological polar surface area 104.98
Molecular weight 494.25
XLogP 1.59
No. Lipinski's rules broken 0
Click here for help
Canonical SMILES CCC(C1C(=O)NC(C(=O)N1C(C(=O)N1CCOCC1)c1coc(n1)C)C1Cc2c(C1)cccc2)C
Isomeric SMILES CC[C@@H]([C@@H]1C(=O)N[C@@H](C(=O)N1[C@@H](C(=O)N1CCOCC1)c1coc(n1)C)C1Cc2c(C1)cccc2)C
InChI InChI=1S/C27H34N4O5/c1-4-16(2)23-25(32)29-22(20-13-18-7-5-6-8-19(18)14-20)26(33)31(23)24(21-15-36-17(3)28-21)27(34)30-9-11-35-12-10-30/h5-8,15-16,20,22-24H,4,9-14H2,1-3H3,(H,29,32)/t16-,22+,23+,24+/m0/s1
No information available.
Summary of Clinical Use Click here for help
Despite progressing to Phase 3 clinical evaluation for tocolytic potential in women who have gone in to spontaneous preterm labour, the retosiban programme has been terminated by GSK. Phase 2 clinical trial results have been published [5-6]. These results indicated that retosiban has a favourable safety and tolerability profile, and can prolong pregnancies in women with preterm labour.
Mechanism Of Action and Pharmacodynamic Effects Click here for help
Oxytocin acts via the oxytocin receptor to induce uterine contractions during parturition [2]. Oxytocin antagonists are used to suppress contractions in pre-term labour (tocolytic activity) [1]..