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Details

Stereochemistry ABSOLUTE
Molecular Formula C17H18ClNO.C4H4O4
Molecular Weight 403.856
Optical Activity UNSPECIFIED
Defined Stereocenters 1 / 1
E/Z Centers 1
Charge 0

SHOW SMILES / InChI
Structure of SCH-23390 MALEATE

SMILES

OC(=O)\C=C/C(O)=O.CN1CCC2=CC(Cl)=C(O)C=C2[C@H](C1)C3=CC=CC=C3

InChI

InChIKey=FGHVSEXHEAUJBT-HFNHQGOYSA-N
InChI=1S/C17H18ClNO.C4H4O4/c1-19-8-7-13-9-16(18)17(20)10-14(13)15(11-19)12-5-3-2-4-6-12;5-3(6)1-2-4(7)8/h2-6,9-10,15,20H,7-8,11H2,1H3;1-2H,(H,5,6)(H,7,8)/b;2-1-/t15-;/m1./s1

HIDE SMILES / InChI

Molecular Formula C17H18ClNO
Molecular Weight 287.784
Charge 0
Count
MOL RATIO 1 MOL RATIO (average)
Stereochemistry ABSOLUTE
Additional Stereochemistry No
Defined Stereocenters 1 / 1
E/Z Centers 0
Optical Activity UNSPECIFIED

Molecular Formula C4H4O4
Molecular Weight 116.0722
Charge 0
Count
MOL RATIO 1 MOL RATIO (average)
Stereochemistry ACHIRAL
Additional Stereochemistry No
Defined Stereocenters 0 / 0
E/Z Centers 1
Optical Activity NONE

Description

SCH-23390 is a potent and selective antagonist of the dopamine-1 and dopamine-5 receptors (Ki = 0.2 and 0.3 nM respectively). It was found to prevent death from d-amphetamine overdose in rats and has also been investigated as a potential treatment for Parkinson's Disease and Bipolar Disorder. A single clinical trial was conducted in healthy humans where SCH-23390 induced akathisia (motor restlessness). Preclinical and clinical trials as therapeutic have been discontinued due to side-effects and lack of efficacy. However, it should be noted that a C11 radiolabeled version of the compound has been synthesized and used as a PET imaging probe for the study of Parkinson's Disease and Huntington's Disease.

CNS Activity

Originator

Approval Year

Targets

Primary TargetPharmacologyConditionPotency
0.2 nM [Ki]
0.3 nM [Ki]

Conditions

ConditionModalityTargetsHighest PhaseProduct
Primary
Unknown
Primary
Unknown
Primary
Unknown

PubMed

Sample Use Guides

In Vivo Use Guide
SCH-23390 was tested in four healthy subjects at doses of 310–810 micrograms delivered intravenously. SCH-23390 induced akathisia at the three highest doses.
Route of Administration: Intravenous
In Vitro Use Guide
Rat brain striatal slices were preincubated with [3H]GABA and superfused in the presence of the GABA transport inhibitor nipecotic and GABA aminotransferase inhibitor aminooxyacetic acids. GABA efflux was estimated by monitoring the efflux of [3H]GABA. The overflow of GABA evoked by electrical field stimulation was blocked by 0.5 - 10 microM of SCH 23390.
Substance Class Chemical
Record UNII
3T51J24N1F
Record Status Validated (UNII)
Record Version