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Merck
CN

SML1354

Tonabersat

≥98% (HPLC)

Synonym(s):

(3S-cis)-N-(6-Acetyl-3,4-dihydro-3-hydroxy-2,2-dimethyl-2H-1-benzopyran-4-yl)-3-chloro-4-fluoro-benzamide, N-[(3S,4S)-6-Acetyl-3,4-dihydro-3-hydroxy-2,2-dimethyl-2H-1-benzopyran-4-yl]-3-chloro-4-fluoro-benzamide, SB 220453, SB-220453

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About This Item

Empirical Formula (Hill Notation):
C20H19ClFNO4
CAS Number:
175013-84-0
Molecular Weight:
391.82
MDL number:
MFCD00944458
UNSPSC Code:
12352202
PubChem Substance ID:
329825809
NACRES:
NA.77

Key Documents

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Quality Level

100

Assay

≥98% (HPLC)

form

powder

optical activity

[α]/D -100 to -110°, c = 1 in methanol

color

white to beige

solubility

DMSO: 20 mg/mL, clear

storage temp.

2-8°C

SMILES string

CC(C1=CC=C2C([C@H](NC(C3=CC=C(F)C(Cl)=C3)=O)[C@H](O)C(C)(C)O2)=C1)=O

InChI

1S/C20H19ClFNO4/c1-10(24)11-5-7-16-13(8-11)17(18(25)20(2,3)27-16)23-19(26)12-4-6-15(22)14(21)9-12/h4-9,17-18,25H,1-3H3,(H,23,26)/t17-,18-/m0/s1

InChI key

XLIIRNOPGJTBJD-ROUUACIJSA-N

Related Categories

Biochem/physiol Actions

Tonabersat (SB-220453) exhibits anticonvulsant property. It is a member of the family of novel benzoylamino-benzopyran compounds. Tonabersat is used as a therapeutic for trigeminal nerve-induced neurovascular reflexes. In addition, it acts as a putative migraine prophylactic agent containing an unique stereospecific binding site in the brain.
Tonabersat is a potent inhibitor of neuronal-glial gap junctions in trigeminal ganglion that inhibits cortical spreading depression (CSD) and neurogenic inflammation in animal models of migraine.
Tonabersat is a potent inhibitor of neuronal-glial gap junctions.

Pictograms

Exclamation markEnvironment
GHS07,GHS09

Signal Word

Warning

Hazard Statements

H315,H319,H400

Hazard Classifications

Aquatic Acute 1 - Eye Irrit. 2 - Skin Irrit. 2

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Regulatory Information

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Certificates of Analysis (COA)

Lot/Batch Number
0000284786
0000278627
0000284786
0000278627
0000143435

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Tonabersat (SB?220453) a novel benzopyran with anticonvulsant properties attenuates trigeminal nerve?induced neurovascular reflexes.
Parsons A A, et al.
British Journal of Pharmacology, 132(7), 1549-1557 (2001)
Randomized, double-blind, placebo-controlled, proof-of-concept study of the cortical spreading depression inhibiting agent tonabersat in migraine prophylaxis.
Goadsby P J, et al.
Cephalalgia, 29(7), 742-750 (2009)
Esther N Arwert et al.
Nature cell biology, 22(7), 758-766 (2020-06-03)
Cancer-associated fibroblasts (CAFs) perform diverse roles and can modulate therapy responses1. The inflammatory environment within tumours also influences responses to many therapies, including the efficacy of oncolytic viruses2; however, the role of CAFs in this context remains unclear. Furthermore, little

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