Rupatadine

Names

[ Name ]:
Rupatadine

[Synonym ]:
Rupatadine [INN]
5H-Benzo[5,6]cyclohepta[1,2-b]pyridine, 8-chloro-6,11-dihydro-11-[1-[(5-methyl-3-pyridinyl)methyl]-4-piperidinylidene]-
8-Chloro-6,11-dihydro-11-(1-((5-methyl-3-pyridinyl)methyl)-4-piperidinylidene)-5H-benzo[5,6]cyclohepta[1,2-b]pyridine
8-Chloro-11-{1-[(5-methylpyridin-3-yl)methyl]piperidin-4-ylidene}-6,11-dihydro-5H-benzo[5,6]cyclohepta[1,2-b]pyridine
8-chloro-6,11-dihydro-11-[1-[(5-methyl-3-pyridinyl)methyl]-4-piperidinylidene]-5H-benzo[5,6]cyclohepta[1,2-b]pyridine
UR-12592
8-Chloro-11-{1-[(5-methyl-3-pyridinyl)methyl]-4-piperidinylidene}-6,11-dihydro-5H-benzo[5,6]cyclohepta[1,2-b]pyridine
8-chloro-11-[1-[(5-methyl-3-pyridyl)methyl]piperidin-4-ylidene]-6,11-dihydro-5H-benzo[5,6]cyclohepta[1,2-b]pyridine
MFCD00926499
8-chloro-6,11-dihydro-11-(1-((5-methyl-3-pyridyl)methyl)-4-piperidylidene)-5h-benzo(5,6)cyclohepta(1,2-b)pyridine
5H-Benzo(5,6)cyclohepta(1,2-b)pyridine, 8-chloro-6,11-dihydro-11-(1-((5-methyl-3-pyridinyl)methyl)-4-piperidinylidene)-
Rupatadinefumarate
8-chloro-11-[1-[(5-methyl-3-pyridyl)methyl]-4-piperidyliden]-6,11-dihydro-5H-benzo[5,6]cyclohepta[1,2-b]pyridine
Rupatadine
UNII-2AE8M83G3E
8-Chloro-11-(1-((5-methylpyridin-3-yl)methyl)piperidin-4-ylidene)-6,11-dihydro-5H-benzo[5,6]cyclohepta[1,2-b]pyridine
Rupatadine Fumarate

Biological Activity

[Description]:

Rupatadine (UR-12592) is a potent dual PAF/H1 antagonist with Ki of 0.55/0.1 uM(rabbit platelet membranes/guinea pig cerebellum membranes).IC50 value:Target: PAF/H1 antagonistin vitro: Rupatadine competitively inhibited histamine-induced guinea pig ileum contraction (pA2 = 9.29 +/- 0.06) without affecting contraction induced by ACh, serotonin or leukotriene D4 (LTD4). It also competitively inhibited PAF-induced platelet aggregation in washed rabbit platelets (WRP) (pA2 = 6.68 +/- 0.08) and in human platelet-rich plasma (HPRP) (IC50 = 0.68 microM), while not affecting ADP- or arachidonic acid-induced platelet aggregation [1]. The IC50 for rupatadine in A23187, concanavalin A and anti-IgE induced histamine release was 0.7+/-0.4 microM, 3.2+/-0.7 microM and 1.5+/-0.4 microM, respectively whereas for loratadine the IC50 was 2.1+/-0.9 microM, 4.0+/-1.3 M and 1.7+/-0.5 microM. SR-27417A exhibited no inhibitory effect [2].in vivo: Rupatadine blocked histamine- and PAF-induced effects in vivo, such as hypotension in rats (ID50 = 1.4 and 0.44 mg/kg i.v., respectively) and bronchoconstriction in guinea pigs (ID50 = 113 and 9.6 micrograms/kg i.v.). Moreover, it potently inhibited PAF-induced mortality in mice (ID50 = 0.31 and 3.0 mg/kg i.v. and p.o., respectively) and endotoxin-induced mortality in mice and rats (ID50 = 1.6 and 0.66 mg/kg i.v.) [1]. rupatadine treatment improved the declined lung function and significantly decreased animal death. Moreover, rupatadine was able not only to attenuate silica-induced silicosis but also to produce a superior therapeutic efficacy compared to pirfenidone, histamine H1 antagonist loratadine, or PAF antagonist CV-3988 [3].

[Related Catalog]:

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

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

Research Areas >> Inflammation/Immunology

[References]

[1]. Merlos M, et al. Rupatadine, a new potent, orally active dual antagonist of histamine and platelet-activating factor (PAF). J Pharmacol Exp Ther. 1997 Jan;280(1):114-21.

[2]. Queralt M, et al. In vitro inhibitory effect of rupatadine on histamine and TNF-alpha release from dispersed canine skin mast cells and the human mast cell line HMC-1. Inflamm Res. 2000 Jul;49(7):355-60.

[3]. Lv XX, et al. Rupatadine protects against pulmonary fibrosis by attenuating PAF-mediated senescence in rodents. PLoS One. 2013 Jul 15;8(7):e68631.

[Related Small Molecules]

Chemical & Physical Properties

[ Density]:
1.2±0.1 g/cm3

[ Boiling Point ]:
586.4±50.0 °C at 760 mmHg

[ Melting Point ]:
58-61ºC

[ Molecular Formula ]:
C₂₆H₂₆ClN₃

[ Molecular Weight ]:
415.958

[ Flash Point ]:
308.4±30.1 °C

[ Exact Mass ]:
415.181519

[ PSA ]:
29.02000

[ LogP ]:
6.11

[ Vapour Pressure ]:
0.0±1.6 mmHg at 25°C

[ Index of Refraction ]:
1.646

[ Storage condition ]:
2-8℃

Safety Information

[ HS Code ]:
2933990090

Synthetic Route

Click to get detail synthetic route

Precursor & DownStream

Precursor

DownStream

Customs

[ HS Code ]: 2933990090

[ Summary ]:
2933990090. heterocyclic compounds with nitrogen hetero-atom(s) only. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%