149709-62-6

Basic information

• Product Name: AHU-377
• Synonyms: AHU-377;4-(((2S,4R)-1-([1,1'-biphenyl]-4-yl)-5-ethoxy-4-Methyl-5-oxopentan-2-yl)aMino)-4-oxobutanoic acid;4-(((2R,4R)-1-([1,1'-biphenyl]-4-yl)-5-ethoxy-4-Methyl-5-oxopentan-2-yl)aMino)-4-oxobutanoic acid;(2R,4S)-5-(Biphenyl-4-yl)-4-[(3-carboxypropionyl)amino]-2-methylpentanoic acid ethyl ester;(2R,4S)-5-([1,1'-Biphenyl]-4-yl)-4-(3-carboxypropanamido)-2-methylpentanoic acid;4-[[(2S,4R)-5-ethoxy-4-methyl-5-oxo-1-(4-phenylphenyl)pentan-2-yl]amino]-4-oxobutanoic acid;4-{[(2S,4R)-1-(4-Biphenylyl)-5-ethoxy-4-methyl-5-oxo-2-pentanyl]amino}-4-oxobutanoic acid;AHU-77
• CAS NO: 149709-62-6
• Molecular Formula: C₂₄H₂₉NO₅
• Molecular Weight: 411.49
• EINECS: 1592732-453-0
• Product Categories: LCZ696;intermediates;Sacubitril;LCZ 696
• Mol File: 149709-62-6.mol
• Article Data: 35

Chemical Properties

• Boiling Point: 656.9±55.0 °C(Predicted)
• Appearance: /
• Density: 1.151±0.06 g/cm3(Predicted)
• Storage Temp.: Sealed in dry,Store in freezer, under -20°C
• Solubility: ≥41.1 mg/mL in DMSO; ≥21.45 mg/mL in H2O with ultrasonic; ≥26.85 mg/mL in EtOH with ultrasonic
• PKA: 4.72±0.10(Predicted)
• CAS DataBase Reference: AHU-377(CAS DataBase Reference)
• NIST Chemistry Reference: AHU-377(149709-62-6)
• EPA Substance Registry System: AHU-377(149709-62-6)

Safety Data

• Hazardous Substances Data: 149709-62-6(Hazardous Substances Data)

Usage

Pharmacologic action

AHU377 and angiotensin IIAT1 receptor antagonist valsartan at a molar ratio of 1: 1 compose LCZ696. LCZ696 was a dual inhibitor of angiotensin II (AT2) receptor and enkephalinase (Neprilysin) receptor. And with its better antihypertensive efficacy than standard antihypertensive drugs, it is a new drug for the treatment of heart failure. AHU377 is a prodrug that converts the active form of the enzyme cleavage LBQ657 ethyl ester. So far its efficacy and safety in milestone phase III surpass the clinical standard drug enalapril. In a clinical trial of the drug, 100 to 400 mg of combined drugs, 80 to 320 mg of valsartan, 200 mg of neprilysin inhibition or placebo were given to the patients in the double-blind trial of phase two with mild to moderate hypertension. The combined drugs are more effective and better tolerated with no vascular edema report than solely applied valsartan or other drugs. LCZ696 shows sustainable treatment benefits in the early treatment: (1) a 20% reduction in the risk of death from cardiovascular disease (p = 0.00004). (2) hospitalization for heart failure was reduced by 21% (p = 0.00004). (3) all-cause mortality was reduced by 16% (p = 0.0005). (4) The overall risk is reduced by 20% according to the composite measure of the primary endpoint of hospitalization for cardiovascular death or heart failure (p = 0.0000002).

Novartis’ New Angiomyocardiac LCZ696

According to a recent study published by Novartis, LCZ696, a cardiovascular drug being developed by the company, will become a new hope for the company. The current study shows that this drug functions well in the remission of cardiovascular necrosis and other symptoms caused by heart disease. LCZ696 is a combination of Novartis Diovan and AHU-377. Some analysts have spoken highly of the drug and estimated that it might be submitted to the FDA as early as next year. Once confirmed in the audit it will mark another great step forward of Novartis in the field of cardiovascular drugs. Although it showed high expectations to LCZ696, Novartis still has a long way to go, given the setbacks of its serelaxin in the FDA and the European Medicines Administration. The news came straight from Basel as investigators around the world were wrapping up the big scientific meeting of the American College of Cardiology.

Market analysis

In the field of research and development of drugs, most of the success of the new drugs in phase II will always lead to a series of competitor projects. The LCZ696 performs so prominently that the industry was shocked. It is predicted that few cardiovascular drugs will be qualified to compete with the LCZ696 in the next few years. Some analysts predict that the LCZ696 sales will peak at $ 8 billion, while Deutsche Bank analysts expect the drug to peak at $ 6 billion, given LCZ696's superior performance in reducing cardiovascular risk. Although the data are slightly different, there is no doubt that, LCZ696 will become a super star to lead the cardiovascular treatment to step into a new era.

Biological Activity

ahu-377 is an inhibitor of neprilysin with ic50 value of 5nm [1].ahu-377 and the angiotensin ii at1 receptor antagonist valsartan compose lcz696 in a 1:1 molar ratio. lcz696 is an angiotensin receptor neprilysin inhibitor. it can reduce blood pressure and may be a novel drug for the treatment of heart failure. ahu-377 is a prodrug, it can be converted by enzymatic cleavage of the ethyl ester into the active form lbq657. it is reported that ahu-377(30 and 100 mg/kg, po) can cause antihypertensive effect in a dose-dependent manner in dahl-ss rats. but in the doca-salt hypertensive rats, it shows a weak reduction [2, 3].

references

[1] ksander gm, ghai rd, dejesus r, diefenbacher cg, yuan a, berry c, sakane y, trapani a. dicarboxylic acid dipeptide neutral endopeptidase inhibitors. j med chem. 1995 may 12;38(10):1689-700.[2] voors aa, dorhout b, van der meer p. the potential role of valsartan + ahu377 ( lcz696 ) in the treatment of heart failure. expert opin investig drugs. 2013 aug;22(8):1041-7. [3] laxminarayan g hegde, cecile yu, cheruvu madhavi et al. comparative efficacy of ahu-377, a potent neprilysin inhibitor, in two rat models of volume-dependent hypertension. bmc pharmacology 2011, 11(suppl 1):p33.

Upstream product

• 149709-60-4 ethyl (2R,4S)-5-([1,1'-biphenyl]-4-yl)-4-((tert-butoxycarbonyl)amino)-2-methylpentanoate 
• 149709-56-8 methyl N-(tert-butoxycarbonyl)-O-[(trifluoromethyl)sulfonyl]-D-tyrosinate 
• 149709-59-1 ethyl 5-(4-<1,1'-biphenyl>yl)-4-<<(1,1-dimethylethoxy)carbonyl>amino>-2-methyl-2-pentenoate 
• 149709-63-7 α-ethyl (γS)-γ-<(3-carboxy-1-oxopropyl)amino>-α-methyl<1,1'-biphenyl>-4-pentanoate 
• 162972-36-3 (R)-α-<<(1,1-dimethylethoxy)carbonyl>amino>-N-methoxy-N-metyl<1,1'-biphenyl>-4-propanamide 
• 149818-98-4 methyl (R)-α-<<(1,1-dimethylethoxy)carbonyl>amino><1,1'-biphenyl>-4-propanoate 
• 1012341-48-8 (2E,4R)-5-{[1,1'-biphenyl]-4-yl}-4-{[(tert-butoxy)carbonyl]amino}-2-methylpent-2-enoic acid 
• 92-66-0 4-bromo-1,1'-biphenyl 
• 108-30-5 succinic acid anhydride 
• 1039307-95-3 (2R,4S)-5-([1,1'-biphenyl]-4-yl)-4-amino-2-methylpentanoic acid 
• 64-17-5 ethanol 

Downstream Products

• 149690-05-1 α-ethyl (αR,γS)-γ-<(3-carboxy-1-oxopropyl)amino>-α-methyl<1,1'-biphenyl>-4-pentanoate monosodium salt 
• 936623-90-4 trisodium [3-((1S,3R)-1-biphenyl-4-yl-methyl-3-ethoxycarbonyl-1-butylcarbamoyl)propionate-(S)-3’-methyl-2’-(pentanoyl{2”-(tetrazol-5-ylate)biphenyl-4’-yl-methyl}amino)butyrate] hemipentahydrate 

Relevant articles and documents

Preparation method of sacubitril valsartan sodium

The invention provides a preparation method of sacubitril valsartan sodium, and belongs to the field of medical chemistry. The preparation method comprises the following steps: by using a compound S309A03 as a raw material, carrying out hydrogenation reaction to generate a compound BPA08, reacting the compound BPA08 in ethanol to generate a compound SAC01, reacting the compound SAC01 with succinicanhydride to generate a compound SAC02, optionally reacting the compound SAC02 with sodium hydroxide, and reacting the compound SAC03 with calcium chloride to generate a compound SAC04; and subjecting the compound SAC04 to acid treatment to obtain a compound YJX01, and enabling the compound YJX01 to react with VST in a single solvent in the presence of sodium hydroxide to prepare the compound YJX02. The preparation method disclosed by the invention is simple to operate, the time required by the process is reduced, the total yield of the process route is greatly improved, an unexpected technical effect is obtained, impurities in the process are removed, and a product with higher purity is obtained. The method has mild process conditions and easily available raw materials, and is suitable for industrial amplification.

Optimization and process improvement for LCZ696 by employing quality by design (QbD) principles

Efforts toward optimization and improvement for the synthesis of LCZ696 employing design of experiment (DoE) principles are described. By increasing the purity of intermediates and mitigating impurity risk during each step, a telescoped process was developed via removal of isolation of intermediates with the overall yield increased by 28.5% from 45.3% to 73.8%. And the whole production cycle was also shortened from 12 days to 7 days with simplified operations and restored process greenness. Meanwhile, the corresponding impurity profile was thus studied in detail and well documented.

Preparation method of key component sacubitril of novel anti-heart-failure drug Entresto

The invention relates to a preparation method of a key component sacubitril of a novel anti-heart-failure drug Entresto. The chemical name of sacubitril is 4-(((2S,4R)-1-(1,1'-biphen-4-yl)-5-ethoxy-4-methyl-5-oxopentan-2-yl) amino)-4-oxobutyric acid. According to the method, 4-bromobiphenyl is used as an initial raw material, and the method is simple in process route, low in cost and suitable forindustrial production.