R 80123

• CAT Number: I001283
• CAS Number: 133718-30-6
• Molecular Formula: C26H29N5O3
• Molecular Weight: 459.54
• Purity: ≥95%
• Synonyms: N-cyclohexyl-N-methyl-2-[(Z)-[(2-oxo-3,5-dihydro-1H-imidazo[2,1-b]quinazolin-7-yl)-phenylmethylidene]amino]oxyacetamide
• InChI: InChI=1S/C26H29N5O3/c1-30(21-10-6-3-7-11-21)24(33)17-34-29-25(18-8-4-2-5-9-18)19-12-13-22-20(14-19)15-31-16-23(32)28-26(31)27-22/h2,4-5,8-9,12-14,21H,3,6-7,10-11,15-17H2,1H3,(H,27,28,32)/b29-25-
• InChIKey: VHDUUXNHZLBGHQ-GNVQSUKOSA-N
• SMILES: CN(C1CCCCC1)C(=O)CON=C(C2=CC=CC=C2)C3=CC4=C(C=C3)N=C5NC(=O)CN5C4

R 80123 is the Z-isomer of R 79595, is also a highly selective phosphodiesterase inhibitor. The fuction is similar to R 80122 (HY-100615, Revizinone).
In vivo: The administration of Revizinone improved the haemodynamic profile with an increase in cardiac output, a decrease in systemic vascular resistance and a stable heart rate and mean arterial blood pressure. [1] With regard to reconstitution of contractility and cardiac function Revizinone (E-isomer) is 10 fold more potent than R 79595 and nearly 100 fold more potent than R 80123 (Z-isomer). [2] Revizinone significantly increases global LV function and systolic wall thickening in ischemic areas at doses greater than or equal to 0.16 mg/kg i.v. [3]

Reference

[1]. Vandeplassche GM et al. Comparative effects of R 80122, enoximone, and milrinone on left ventricular phosphodiesterase isoenzymes in vitro and on contractility of normal and stunned myocardium in vivo in dogs. J Cardiovasc Pharmacol. 1992 May;19(5):714-22.
https://www.ncbi.nlm.nih.gov/pubmed/ 1381769
 [Content Brief]

[2]. Schneider J et al. Cardiac effects of R 79595 and its isomers (R 80122 and R 80123) in an acute heart failure model. A new class of cardiotonic agents with highly selective phosphodiesterase III inhibitory properties.
Naunyn Schmiedebergs Arch Pharmacol. 1992 Nov;346(5):563-72.
 [Content Brief]

[3]. Vandeplassche GM et al. Comparative effects of R 80122, enoximone, and milrinone on left ventricular phosphodiesterase isoenzymes in vitro and on contractility of normal and stunned myocardium in vivo in dogs. J Cardiovasc Pharmacol. 1992 May;19(5):714-22.
 [Content Brief]