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Details

Stereochemistry ABSOLUTE
Molecular Formula C26H36N2O3
Molecular Weight 424.5756
Optical Activity UNSPECIFIED
Defined Stereocenters 5 / 5
E/Z Centers 0
Charge 0

SHOW SMILES / InChI
Structure of SERGOLEXOLE

SMILES

[H][C@@]12CC3=CN(C(C)C)C4=CC=CC(=C34)[C@@]1([H])C[C@H](CN2C)C(=O)O[C@H]5CC[C@@H](CC5)OC

InChI

InChIKey=RJBJIKXTJIZONR-HSWWXKJFSA-N
InChI=1S/C26H36N2O3/c1-16(2)28-15-17-13-24-22(21-6-5-7-23(28)25(17)21)12-18(14-27(24)3)26(29)31-20-10-8-19(30-4)9-11-20/h5-7,15-16,18-20,22,24H,8-14H2,1-4H3/t18-,19-,20-,22-,24-/m1/s1

HIDE SMILES / InChI
Sergolexole [LY 281067] is an ergoline ester similar in structure to amesergide [LY 237733], with potent and highly selective antagonist activity at serotonin 2. The preclinical pharmacologic activity of LY 281067 shows it to be a potent and highly selective serotonergic (5-HT2) receptor antagonist. Based upon binding studies with 5-HT2 receptors in brain cortical membranes and block of 5-HT-induced contractions in the rat jugular vein, LY 281067 showed high affinity at 5-HT2 receptors with a dissociation constant of approximately 1 nM. LY 281067 was a highly selective 5-HT2 receptor antagonist without appreciably binding to 5-HT1, D1 or D2 receptors or interacting with histamine (H1), cholinergic, beta adrenergic or alpha-1 adrenergic receptors in smooth muscle. LY 281067 had modest affinity at alpha-2 receptors with a dissociation constant of approximately 100 nM. Oral bioavailability of LY 281067 in spontaneously hypertensive rats was excellent with an oral to i.v. dose ratio approximating 4. Sergolexole was undergoing phase II clinical trials with Eli Lilly in the USA as a potential treatment for migraine and anxiety, but development of this compound, but development of this compound has been discontinued.

Approval Year

PubMed

PubMed

TitleDatePubMed
5-Hydroxytryptamine2 receptor antagonist activity of the acid metabolite (1-isopropyl dihydrolysergic acid) of the ergoline ester, sergolexole (LY281067).
1989 Dec
Species variations in transmembrane region V of the 5-hydroxytryptamine type 2A receptor alter the structure-activity relationship of certain ergolines and tryptamines.
1994 Feb
Patents

Sample Use Guides

Rats were each given a single dose of 0, 160 or 275 mg/kg of Sergolexole [LY 281067] by i.p. injection or 0, 300 or 500 mg/kg of LY 281067 by oral gavage. Five male and five female rats were used for each dose group. LY 281067 was prepared as a 50-mg/ml suspension in 10% aqueous acacia solution.
Route of Administration: Other
In Vitro Use Guide
Sergolexole (1 uM) blocked 5-HT-induced relaxation in endothelium denuded rings of canine coronary artery in an apparently competitive manner. In addition, the antagonist dissociation constant for sergolexole to antagonize 5-HT-induced relaxation was -log KB = 6.4. Sergolexole interacted with the cloned human 5-HT7 receptor with Ki value of 100.8 nM.
Name Type Language
SERGOLEXOLE
INN  
INN  
Official Name English
TRANS-4-METHOXYCYCLOHEXYL 1-ISOPROPYL-6-METHYLERGOLINE-8.BETA.-CARBOXYLATE
Systematic Name English
sergolexole [INN]
Common Name English
Classification Tree Code System Code
NCI_THESAURUS C66885
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Code System Code Type Description
ChEMBL
CHEMBL2110594
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EPA CompTox
DTXSID10148700
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INN
6330
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PUBCHEM
60262
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MESH
C054583
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CAS
108674-86-8
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EVMPD
SUB10493MIG
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WIKIPEDIA
Sergolexole
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SMS_ID
100000084117
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NCI_THESAURUS
C152343
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FDA UNII
J6TGA89COP
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