SML3256

Fimasartan

≥98% (HPLC)

• Synonym(s): 2-Butyl-1,6-dihydro-N,N,4-trimethyl-6-oxo-1-[[2′-(2H-tetrazol-5-yl)[1,1′-biphenyl]-4-yl]methyl]-5-pyrimidineethanethioamide, 2-n-Butyl-5-dimethylaminothiocarbonylmethyl-6-methyl-3-[[2′-(1H-tetrazol-5-yl)biphenyl-4-yl]methyl]pyrimidin-4(3H)-one, BR-A-657, BR-A657
• Empirical Formula (Hill Notation): C₂₇H₃₁N₇OS
• CAS Number: 247257-48-3
• Molecular Weight: 501.65
• MDL number: MFCD24369685
• UNSPSC Code: 12352107
• NACRES: NA.77

Properties

• Quality Level: 100
• assay: ≥98% (HPLC)
• form: powder
• color: white to beige
• solubility: DMSO: 2 mg/mL, clear
• storage temp.: 2-8°C
• SMILES string: S=C(CC1=C(N=C(N(C1=O)CC2=CC=C(C=C2)C3=CC=CC=C3C4=NNN=N4)CCCC)C)N(C)C
• InChI: 1S/C27H31N7OS/c1-5-6-11-24-28-18(2)23(16-25(36)33(3)4)27(35)34(24)17-19-12-14-20(15-13-19)21-9-7-8-10-22(21)26-29-31-32-30-26/h7-10,12-15H,5-6,11,16-17H2,1-4H3,(H,29,30,31,32)
• InChI key: AMEROGPZOLAFBN-UHFFFAOYSA-N

Description

Biochem/physiol Actions

Fimasartan (BR-A-657) is an orally active, highly potent angiotensin II receptor AT1 (AGTR1) antagonist (blocker) that selectively blocks AngII-, but not KCl- or noradrenaline-, induced contraction of rabbit thoracic aortic rings (IC50 = 0.42 nM) with 615-fold higher AT1 affinity than losartan (IC50 = 0.13 nM vs. 80 nM against 0.05 nM AngII for binding rat adrenal cortex). Fimasartan significantly decreases mean arterial blood pressure with rapid onset (in 0.5 h) in spontaneously hypertensive rats (Emax of 75% reduction, 5-24 hr post 10 mg/kg p.o.) and is ~19-fold more effective than losartan against AngII (100 ng/kg i.v.)-induced pressor response in rats in vivo (ED50 = 18 ng/kg vs. 336 ng/kg i.v.).

Orally active, highly potent angiotensin II receptor AT1 (AGTR1) antagonist with superior in vivo antihypertensive efficacy than Losartan.

Safety Information

• Storage Class: 11 - Combustible Solids
• wgk_germany: WGK 3
• flash_point_f: Not applicable
• flash_point_c: Not applicable