New Drug Approvals

Home » Uncategorized » VANIPREVIR, MK 7009

VANIPREVIR, MK 7009

DRUG APPROVALS BY DR ANTHONY MELVIN CRASTO .....FOR BLOG HOME CLICK HERE

PAYPAL DONATIONS

ORGANIC SPECTROSCOPY

Read all about Organic Spectroscopy on ORGANIC SPECTROSCOPY INTERNATIONAL 

Categories

Blog Stats

  • 1,309,844 hits

Enter your email address to follow this blog and receive notifications of new posts by email.

Join 1,782 other followers

add to any

Share

(1R,21S,24S)-21-tert-butyl-N-((1R,2R)-1-{[(cyclopropylsulfonyl)amino]carbonyl}-2-ethylcyclopropyl)-16,16-dimethyl-3,19,22-trioxo-2,18-dioxa-4,20,23-triazatetracyclo[21.2.1.14,7.06,11]-heptacosa-6,8,10-triene-24-carboxamide
923590-37-8  cas no
Molecular formula C38H53N5O9S
Molar mass 755.92 g mol−1
vaniprevir (MK-7009) is a macrocyclic hepatitis C virus NS3/4a protease inhibitor, is active against both the genotype 1 and genotype 2 NS3/4a protease enzymes. vaniprevir (MK-7009) has good plasma exposure and excellent liver exposure in multiple species.

Vaniprevir (MK-7009) is a macrocyclic Hepatitis C virus (HCV) NS3/4a protease inhibitor, developed by Merck & Co., which is currently in clinical testing.[1]

  1.  McCauley JA, McIntyre CJ, Rudd MT, Nguyen KT, Romano JJ, Butcher JW, Gilbert KF, Bush KJ, Holloway MK, Swestock J, Wan BL, Carroll SS, DiMuzio JM, Graham DJ, Ludmerer SW, Mao SS, Stahlhut MW, Fandozzi CM, Trainor N, Olsen DB, Vacca JP, Liverton NJ (March 2010). “Discovery of vaniprevir (MK-7009), a macrocyclic hepatitis C virus NS3/4a protease inhibitor”. J. Med. Chem. 53 (6): 2443–63.doi:10.1021/jm9015526PMID 20163176.

 

 Song ZJ, Tellers DM, Journet M, Kuethe JT, Lieberman D, Humphrey G, Zhang F, Peng Z, Waters MS, Zewge D, Nolting A, Zhao D, Reamer RA, Dormer PG, Belyk KM, Davies IW, Devine PN, Tschaen DM.Synthesis of vaniprevir (MK-7009): lactamization to prepare a 20-membered [corrected] macrocycle.J Org Chem. 2011 Oct 7;76(19):7804-15. Epub 2011 Aug 31.
Abstract
Development of a practical synthesis of MK-7009, a 20-membered [corrected] macrocycle, is described. A variety of ring-closing strategies were evaluated, including ring-closing metathesis, intermolecular palladium-catalyzed cross-couplings, and macrolactamization. Ring closure via macrolactamization was found to give the highest yields under relatively high reaction concentrations. Optimization of the ring formation step and the synthesis of key intermediates en route to MK-7009 are reported
…………………………………..
Kong J, * Chen C.-y, * Balsells-Padros J, Cao Y, Dunn RF, Dolman SJ, Janey J, Li H, Zacuto MJ. Merck Research Laboratory, Rahway, USA
Synthesis of the HCV Protease Inhibitor Vaniprevir (MK-7009) Using Ring-Closing Metathesis Strategy.J. Org. Chem. 2012; 77: 3820-3828
The key step in this synthesis of vaniprevir is the construction of the macrocycle (91% yield) via ring-closing metathesis (RCM). By using simultaneous slow addition of the substrate and the catalyst D (0.2 mol%), the RCM reaction could be conducted at high concentration (0.13 M) on a 100 g scale.
2,6-Dichloro-1,4-benzoquinone was added to suppress isomerization of the allyl alkene in the isoindoline unit in C and consequent competing formation of a 19-membered ring by-product. An important contributor to the success of the RCM reaction was the high purity of crystalline B
…………………………………..
J. Org. Chem., 2012, 77 (8), pp 3820–3828

DOI: 10.1021/jo3001595
………………………………………………………………………………………….

nmr

Synthesis of the HCV protease inhibitor vaniprevir (MK-7009) using ring-closing metathesis strategy
J Org Chem 2012, 77(8): 3820
Song, Z.G.J.; Tellers, D.M.; Journet, M.; et al.
Synthesis of vaniprevir (MK-7009): Lactamization to prepare a 22-membered macrocycle
J Org Chem 2011, 76(19): 9553

PATENTS

WO 2013106631

WO 2013101550

WO 2007015787
WO 2007015855

WO 2013066753

WO 2012082672

WO 2011025849

WO 2003099274

WO 2007016441

…………………………………………………………………………….

US7470664

EXAMPLE 46 (5R,7S,10S)-10-tert-Butyl-N-((1R,2R)-1-{[(cyclopropylsulfonyl)amino]carbonyl}-2-ethylcyclopropyl)-15,15-dimethyl-3,9,12-trioxo-6,7,9,10,11,12,14,15,16,17,18,19-dodecahydro-1H,5H-2,23-ethano-5,8-methano-4,13,2,8,11-benzodioxatriazacyclohenicosine-7-carboxamide (III-231)

Figure US07470664-20081230-C00203

Step 1: 8-Hydroxy-1,2,3,4-tetrahydroisoquinoline hydrobromide

Figure US07470664-20081230-C00204

A mixture of 8-methoxy-1,2,3,4-tetrahydroisoquinoline hydrochloride [Tetrahedron Letters, 1991, 32(17), 1965.] (3.0 g 15.0 mmol) and 45 mL of 48% aqueous HBr was heated for 18 h at 120° C. The resulting brown suspension was filtered and dried to provide 8-hydroxy-1,2,3,4-tetrahydroisoquinoline hydrobromide (2.8 g, 81% yield). LRMS (ESI) m/z 150.1 [(M+H)+; calcd for C9H1NO: 150.2].

Step 2: 1-tert-Butyl 2-methyl (2S,4R)-4-{[(8-hydroxy-3,4-dihydroisoquinolin-2(1H)-yl)carbonyl]oxy}pyrrolidine-1,2-dicarboxylate:

Figure US07470664-20081230-C00205

Carbonyldiimidazole (0.176 g, 1.086 mmol) was added to a stirred, room temperature solution of DMF (5 mL) and N-Boc-trans-4-hydroxy-L-proline methyl ester (0.21 g, 0.87 mmol) and the mixture was stirred 45 min. 8-Hydroxy-1,2,3,4-tetrahydroisoquinoline (0.20 g, 0.87 mmol) and Et3N (0.18 g, 1.74 mmol) were added and the resulting solution was heated at 50° C. for 2 h. The reaction mixture was poured into aqueous saturated NH4Cl and extracted with EtOAc, dried over Na2SO4and concentrated to an oil. The residue was purified by column chromatography on silica gel (gradient elution, 10 to 80% EtOAc in hexanes) to give 1-tert-butyl 2-methyl (2S,4R)-4-{[(8-hydroxy-3,4-dihydroisoquinolin-2(1H)-yl)carbonyl]oxy}pyrrolidine-1,2-dicarboxylate (0.25 g, 0.60 mmol, 69% yield) as a colorless foam after evaporation of solvent. LRMS (ESI) m/z 321.3 [((M-Boc)+H)+; calcd for C16H21N2O5: 321.4].

Step 3: 1-tert-Butyl 2-methyl (2S,4R)-4-({[8-{[(trifluoromethyl)sulfonyl]oxy}-3,4-dihydroisoquinolin-2(1H)-yl]carbonyl}oxy)pyrrolidine-1,2-dicarboxylate

Figure US07470664-20081230-C00206

Trifluoromethanesulfonic anhydride (1.76 g, 6.24 mmol) was added to a stirred, 0° C. mixture of 1-tert-butyl 2-methyl (2S,4R)-4-{[(8-hydroxy-3,4-dihydroisoquinolin-2(1H)-yl)carbonyl]oxy}pyrrolidine-1,2-dicarboxylate (1.81 g, 4.30 mmol) and Et3N (1.31 g, 12.90 mmol) in DCM (20 mL) and stirred for 18 h. The resulting mixture was poured into saturated aqueous NaHCOand extracted into dichloromethane. The organic layer was washed with 10% citric acid solution, dried over Na2SO4and concentrated to red oil. The oil was purified by column chromatography on silica gel (gradient elution, 10 to 70% EtOAc in hexanes) to give a yellow oil, 1-tert-butyl 2-methyl (2S,4R)-4-({[8-{[(trifluoro methyl)sulfonyl]oxy}-3,4-dihydroisoquinolin-2(1H)-yl]carbonyl}oxy)pyrrolidine-1,2-dicarboxylate (1.65 g, 69.4% yield). LRMS (ESI) m/z 453.2 [((M-Boc)+H)+; calcd for C17H20F3N2O7S: 453.4].

Step 4: 1-tert-Butyl 2-methyl (2S,4R)-4-{[(8-vinyl-3,4-dihydroisoquinolin-2(1H)-yl)carbonyl]oxy}pyrrolidine-1,2-dicarboxylate

Figure US07470664-20081230-C00207

A solution of 1-tert-butyl 2-methyl (2S,4R)-4-({[8-{[(trifluoromethyl)sulfonyl]oxy}-3,4-dihydroisoquinolin-2(1H)-yl]carbonyl}oxy)pyrrolidine-1,2-dicarboxylate (1.74 g, 3.15 mmol), tri-n-butyl vinyl tin (1.10 g, 1.46 mmol) and lithium chloride (0.40 g, 9.45 mmol) in 25 mL DMF was purged with nitrogen for 10 min. Then bis(triphenylphosphine)palladium (II) chloride (0.22 g, 0.32 mmol) was added, and the mixture stirred at 25° C. under nitrogen for 18 h. The mixture was partitioned between EtOAc and saturated NaHCO3, the organic layer separated and washed with water then brine, dried over anhydrous sodium sulfate and concentrated to an oil. The oil was purified by column chromatography on silica gel (gradient elution, 10 to 65% EtOAc in hexanes) to give a colorless oil, 1-tert-butyl 2-methyl (2S,4R)-4-{[(8-vinyl-3,4-dihydroisoquinolin-2(1H)-yl)carbonyl]oxy}pyrrolidine-1,2-dicarboxylate (1.00 g, 74% yield). LRMS (ESI) m/z 453.2 [(M+Na)+; calcd for C23H30N2O6Na: 453.5].

Step 5: (5R,7S,10S)-10-tert-Butyl-N-((1R,2R)-1-{[(cyclopropylsulfonyl)amino]carbonyl}-2-ethylcyclopropyl)-15,15-dimethyl-3,9,12-trioxo-6,7,9,10,11,12,14,15,16,17,18,19-dodecahydro-1H,5H-2,23-ethano-5.8-methano-4,13,2,8,11-benzodioxatriazacyclohenicosine-7-carboxamide (III-231)

…………………………………………………………………………..
J. Med. Chem., 2010, 53 (6), pp 2443–2463
DOI: 10.1021/jm9015526
(1R,21S,24S)-21-tert-Butyl-N-((1R,2R)-1-{[(cyclopropylsulfonyl)amino]carbonyl}-2-ethylcyclopropyl)-16,16-dimethyl-3,19,22-trioxo-2,18-dioxa-4,20,23-triazatetracyclo[21.2.1.14,7.06,11]heptacosa-6,8,10-triene-24-carboxamide (Vaniprevir, 35b)
35b (22.1 g, 91% yield, 3 steps) as a white powder.
Abstract Image
1H NMR (500 MHz, ppm, CD3OD) δ 9.07 (s, 1 H), 7.23 (t, J = 7.5 Hz, 1 H), 7.14 (d, J = 7.5 Hz, 1 H),
7.09 (d, J = 7.0 Hz, 1 H), 5.53 (s, 1 H), 4.75−4.56 (m, 4 H), 4.44−4.36 (m, 3 H),
4.19 (d, J = 11.7 Hz, 1 H), 3.92 (dd, J = 11.8, 3.3 Hz, 1 H), 3.33−3.27 (m, 2 H),
2.99−2.96 (m, 1 H), 2.60−2.42 (m, 3 H), 2.17−2.08 (m, 1 H), 1.68−1.48 (m, 6 H),
1.37−1.16 (m, 8 H), 1.13−0.94 (m, 17 H), 0.80 (s, 3 H).
HRMS (ESI) m/z 758.3844 [(M + H)+; calcd for C38H56N5O9S: 758.3793]. Anal. (C38H55N5O9S·0.55H2O) C, H, N.
………………………………………

Synthesis of the HCV protease inhibitor Vaniprevir (MK-7009) using ring-closing metathesis strategy.

Kong J, Chen CY, Balsells-Padros J, Cao Y, Dunn RF, Dolman SJ, Janey J, Li H, Zacuto MJ.

J Org Chem. 2012 Apr 20;77(8):3820-8. doi: 10.1021/jo3001595. Epub 2012 Apr 10.

…………………………………………………

Synthesis of vaniprevir (MK-7009): lactamization to prepare a 20-membered [corrected] macrocycle.

Song ZJ, Tellers DM, Journet M, Kuethe JT, Lieberman D, Humphrey G, Zhang F, Peng Z, Waters MS, Zewge D, Nolting A, Zhao D, Reamer RA, Dormer PG, Belyk KM, Davies IW, Devine PN, Tschaen DM.

J Org Chem. 2011 Oct 7;76(19):7804-15. doi: 10.1021/jo2011494. Epub 2011 Aug 31. Erratum in: J Org Chem. 2011 Nov 18;76(22):9553.

……………………………………………………………

Discovery of vaniprevir (MK-7009), a macrocyclic hepatitis C virus NS3/4a protease inhibitor.

McCauley JA, McIntyre CJ, Rudd MT, Nguyen KT, Romano JJ, Butcher JW, Gilbert KF, Bush KJ, Holloway MK, Swestock J, Wan BL, Carroll SS, DiMuzio JM, Graham DJ, Ludmerer SW, Mao SS, Stahlhut MW, Fandozzi CM, Trainor N, Olsen DB, Vacca JP, Liverton NJ.

J Med Chem. 2010 Mar 25;53(6):2443-63. doi: 10.1021/jm9015526.

…………………………………………………..

Novel P2-P4 macrocyclic inhibitors of HCV NS3/4A protease by P3 succinamide fragment depeptidization strategy.

Pompei M, Di Francesco ME, Pesci S, Koch U, Vignetti SE, Veneziano M, Pace P, Summa V.

Bioorg Med Chem Lett. 2010 Jan 1;20(1):168-74. doi: 10.1016/j.bmcl.2009.11.005. Epub 2009 Nov 10.

WANT TO KNOW ABOUT VIR SERIES CLICK

click

http://drugsynthesisint.blogspot.in/p/vir-series-hep-c-virus-22.html

AND

http://medcheminternational.blogspot.in/p/vir-series-hep-c-virus.html


Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s

Paypal Donate

DR ANTHONY CRASTO

Follow New Drug Approvals on WordPress.com

Enter your email address to follow this blog and receive notifications of new posts by email.

Join 1,782 other followers

DR ANTHONY MELVIN CRASTO Ph.D

DR ANTHONY MELVIN CRASTO Ph.D

DR ANTHONY MELVIN CRASTO, Born in Mumbai in 1964 and graduated from Mumbai University, Completed his Ph.D from ICT, 1991,Matunga, Mumbai, India, in Organic Chemistry, The thesis topic was Synthesis of Novel Pyrethroid Analogues, Currently he is working with GLENMARK PHARMACEUTICALS LTD, Research Centre as Principal Scientist, Process Research (bulk actives) at Mahape, Navi Mumbai, India. Total Industry exp 29 plus yrs, Prior to joining Glenmark, he has worked with major multinationals like Hoechst Marion Roussel, now Sanofi, Searle India Ltd, now RPG lifesciences, etc. He has worked with notable scientists like Dr K Nagarajan, Dr Ralph Stapel, Prof S Seshadri etc, He did custom synthesis for major multinationals in his career like BASF, Novartis, Sanofi, etc., He has worked in Discovery, Natural products, Bulk drugs, Generics, Intermediates, Fine chemicals, Neutraceuticals, GMP, Scaleups, etc, he is now helping millions, has 9 million plus hits on Google on all Organic chemistry websites. His friends call him worlddrugtracker. His New Drug Approvals, Green Chemistry International, All about drugs, Eurekamoments, Organic spectroscopy international, etc in organic chemistry are some most read blogs He has hands on experience in initiation and developing novel routes for drug molecules and implementation them on commercial scale over a 29 year tenure till date Aug 2016, Around 30 plus products in his career. He has good knowledge of IPM, GMP, Regulatory aspects, he has several International patents published worldwide . He has good proficiency in Technology transfer, Spectroscopy, Stereochemistry, Synthesis, Polymorphism etc., He suffered a paralytic stroke/ Acute Transverse mylitis in Dec 2007 and is 90 %Paralysed, He is bound to a wheelchair, this seems to have injected feul in him to help chemists all around the world, he is more active than before and is pushing boundaries, He has 9 million plus hits on Google, 2.5 lakh plus connections on all networking sites, 25 Lakh plus views on dozen plus blogs, He makes himself available to all, contact him on +91 9323115463, email amcrasto@gmail.com, Twitter, @amcrasto , He lives and will die for his family, 90% paralysis cannot kill his soul., Notably he has 13 lakh plus views on New Drug Approvals Blog in 212 countries......https://newdrugapprovals.wordpress.com/ , He appreciates the help he gets from one and all, Friends, Family, Glenmark, Readers, Wellwishers, Doctors, Drug authorities, His Contacts, Physiotherapist, etc

Personal Links

View Full Profile →

TWITTER

bloglovin

Follow my blog with Bloglovin The title of your home page You could put your verification ID in a comment Or, in its own meta tag Or, as one of your keywords Your content is here. The verification ID will NOT be detected if you put it here.
%d bloggers like this: