Asenapine Maleate

Names

[ Name ]:
Asenapine Maleate

[Synonym ]:
1H-Dibenz[2,3:6,7]oxepino[4,5-c]pyrrole, 5-chloro-2,3,3a,12b-tetrahydro-2-methyl-, (3aS,12bS)-, (2Z)-2-butenedioate (1:1)
trans-5-Chloro-2,3,3a,12b-tetrahydro-2-methyl-1H-dibenz(2,3:6,7)oxepino(4,5-c)pyrrole maleate
Asenapine maleate
Asenapine
(3aS,12bS)-5-Chloro-2-methyl-2,3,3a,12b-tetrahydro-1H-dibenzo[2,3:6,7]oxepino[4,5-c]pyrrole (2Z)-2-butenedioate (1:1)
Saphris
Asenapine (maleate)
trans-5-chloro-2-methyl-2,3,3a,12b-tetrahydro-1H-dibenz-[2,3:6,7]oxepino[4,5-C]pyrrolidino maleate
Sycrest
trans-5-Chloro-2-methyl-2,3,3a,12b-tetrahydro-1H-dibenz<2,3:6,7>oxepino<4,5-c>pyrrolidine maleate
trans-5-chloro-2,3,3a,12b-tetrahydro-2-methyl-1H-dibenzo[2,3:6,7]oxepino[4,5-c]pyrrole maleate
(3aRS,12bRS)-5-chloro-2-methyl-2,3,3a,12b-tetrahydro-1H-dibenz[2,3:6,7]oxepino[4,5-c]pyrrole (2Z)-2-butenedioate
1H-Dibenz(2,3:6,7)oxepino(4,5-c)pyrrole,5-chloro-2,3,3a,12b-tetrahydro-2-methyl-,(3aR,12bR)-rel-,(2Z)-2-butenedioate (1:1)

Biological Activity

[Description]:

Asenapine maleate is a 5-HT (1A, 1B, 2A, 2B, 2C, 5A, 6, 7) and D2 antagonist with Ki values of 0.03-4.0 nM, 1.3nM, respectively, and an antipsychotic.

[Related Catalog]:

Signaling Pathways >> GPCR/G Protein >> 5-HT Receptor

Signaling Pathways >> Neuronal Signaling >> 5-HT Receptor

Research Areas >> Neurological Disease

[Target]

5-HT1A Receptor:2.5 nM (Ki)

5-HT2A Receptor:0.06 nM (Ki)

5-HT2C Receptor:0.03 nM (Ki)

5-HT7 Receptor:0.13 nM (Ki)

D2 Receptor:1.3 nM (Ki)

D3 Receptor:0.42 nM (Ki)

D4 Receptor:1.1 nM (Ki)

[In Vitro]

Relative to its D2 receptor affinity, asenapine has a higher affinity for 5-HT2C, 5-HT2A, 5-HT2B, 5-HT7, 5-HT6, α2B and D3 receptors, suggesting stronger engagement of these targets at therapeutic doses. Asenapine behaves as a potent antagonist (pKB) at 5-HT1A (7.4), 5-HT1B (8.1), 5-HT2A (9.0), 5-HT2B (9.3), 5-HT2C (9.0), 5-HT6 (8.0), 5-HT7 (8.5), D2 (9.1), D3 (9.1), α2A (7.3), α2B (8.3), α2C (6.8) and H1 (8.4) receptors[2].

[In Vivo]

Asenapine is an atypical antipsychotic that is currently available for the treatment of schizophrenia and bipolar I disorder. Asenapine may have superior therapeutic effect on anxiety symptoms than other agents in rats[3]. Asenapine has anxiolytic-like effects in the EPM and the defensive marble burying tests in mice[4].

[Animal admin]

Rats: Asenapine maleate is suspended in 10% hydroxypropyl-β-cyclodextrin and administered in a volume of 1 mL/kg body weight . Rats are individually fear conditioned using electrical foot shock in a Skinner box. Animals are injected intraperitoneally (i.p.) with asenapine, clozapine, olanzapine, buspirone, or SB242084 at 30 min before freezing behaviour assessment[3]. Mice: Male ICR mice are repeatedly treated with 0.1 or 0.3mg/kg injections of asenapine and then tested in a battery of behavioural tests related to anxiety including the open-field test, elevated plus-maze (EPM), defensive marble burying and hyponeophagia tests[4].

[References]

[1]. Stoner SC, et al. Asenapine: a clinical review of a second-generation antipsychotic. Clin Ther. 2012 May;34(5):1023-40.

[2]. Shahid M, et al. Asenapine: a novel psychopharmacologic agent with a unique human receptor signature. J Psychopharmacol. 2009 Jan;23(1):65-73.

[3]. Ohyama M,et al. Asenapine reduces anxiety-related behaviours in rat conditioned fear stress model. Acta Neuropsychiatr. 2016 Dec;28(6):327-336.

[4]. Ene HM, et al. Effects of repeated asenapine in a battery of tests for anxiety-like behaviours in mice. Acta Neuropsychiatr. 2016 Apr;28(2):85-91.

[Related Small Molecules]

Chemical & Physical Properties

[ Boiling Point ]:
357.9ºC at 760 mmHg

[ Melting Point ]:
141-145°

[ Molecular Formula ]:
C₂₁H₂₀ClNO₅

[ Molecular Weight ]:
401.84000

[ Flash Point ]:
170.2ºC

[ Exact Mass ]:
401.10300

[ PSA ]:
87.07000

[ LogP ]:
3.90820

[ Storage condition ]:
2-8°C

[ Water Solubility ]:
H2O: ≥10mg/mL

MSDS

Click to get detail MSDS

Safety Information

[ Symbol ]:

GHS02, GHS06, GHS08

[ Signal Word ]:
Danger

[ Hazard Statements ]:
H225-H301 + H311 + H331-H370

[ Precautionary Statements ]:
P210-P260-P280-P301 + P310-P311

[ Hazard Codes ]:
Xn;N

[ Risk Phrases ]:
R22;R36/37/38;R50/53

[ Safety Phrases ]:
S26-S60-S61

[ RIDADR ]:
UN1230 - class 3 - PG 2 - Methanol, solution

[ HS Code ]:
29339900

Synthetic Route

Click to get detail synthetic route

Precursor & DownStream

Precursor

DownStream

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