DR ANTHONY MELVIN CRASTO,WorldDrugTracker, helping millions, A 90 % paralysed man in action for you, I am suffering from transverse mylitis and bound to a wheel chair, With death on the horizon, nothing will not stop me except God................DR ANTHONY MELVIN CRASTO Ph.D ( ICT, Mumbai) , INDIA 25Yrs Exp. in the feld of Organic Chemistry,Working for GLENMARK GENERICS at Navi Mumbai, INDIA. Serving chemists around the world. Helping them with websites on Chemistry.Million hits on google, world acclamation from industry, academia, drug authorities for websites, blogs and educational contribution

Friday 4 November 2016

BRD 2879

imgBRD2879.png
BRD2879
BRD-K56962879-001-01-5
CAS 1304750-47-7
Chemical Formula: C30H38FN3O5S
Molecular Weight: 571.7084
3-cyclohexyl-1-(((4R,5R)-8-((3-fluorophenyl)ethynyl)-2-((S)-1-hydroxypropan-2-yl)-4-methyl-1,1-dioxido-2,3,4,5-tetrahydrobenzo[b][1,4,5]oxathiazocin-5-yl)methyl)-1-methylurea
3-cyclohexyl-1-[[(4R,5R)-8-[2-(3-fluorophenyl)ethynyl]-2-[(2S)-1-hydroxypropan-2-yl]-4-methyl-1,1-dioxo-4,5-dihydro-3H-6,1$l^{6},2-benzoxathiazocin-5-yl]methyl]-1-methylurea

BRD2879 is a potent and cell-active inhibitor of IDH1-R132H with a markedly different structure from previously reported probes with (IC50 = 50 nM for inhibiting IDH1-R132H enzyme). BRD2879 represents a new structural class of mutant IDH1 inhibitors that, with optimization, may prove useful in the study of this enzyme and its role in cancer



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The Eli and Edythe L. Broad Institute of MIT and Harvard (/ˈbroʊd/), often referred to as the Broad Institute, is a biomedical and genomic research center located in Cambridge, Massachusetts, United States. The institute is independently governed and supported as a 501(c)(3) nonprofit research organization under the name Broad Institute Inc.,[1][2] and is partners with Massachusetts Institute of Technology, Harvard University, and the five Harvard teaching hospitals.

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PAPER
Abstract Image
Evidence suggests that specific mutations of isocitrate dehydrogenases 1 and 2 (IDH1/2) are critical for the initiation and maintenance of certain tumor types and that inhibiting these mutant enzymes with small molecules may be therapeutically beneficial. In order to discover mutant allele-selective IDH1 inhibitors with chemical features distinct from existing probes, we screened a collection of small molecules derived from diversity-oriented synthesis. The assay identified compounds that inhibit the IDH1-R132H mutant allele commonly found in glioma. Here, we report the discovery of a potent (IC50 = 50 nM) series of IDH1-R132H inhibitors having 8-membered ring sulfonamides as exemplified by the compound BRD2879. The inhibitors suppress (R)-2-hydroxyglutarate production in cells without apparent toxicity. Although the solubility and pharmacokinetic properties of the specific inhibitor BRD2879 prevent its use in vivo, the scaffold presents a validated starting point for the synthesis of future IDH1-R132H inhibitors having improved pharmacological properties.

Discovery of 8-Membered Ring Sulfonamides as Inhibitors of Oncogenic Mutant Isocitrate Dehydrogenase 1

 Center for the Science of Therapeutics, Broad Institute, Cambridge, Massachusetts 02142, United States
 Department of Chemistry and Chemical Biology, Harvard University, Cambridge, Massachusetts 02138, United States
§ Howard Hughes Medical Institute, Cambridge, Massachusetts 02138, United States
 Department of Neurological Surgery, Washington Univeristy School of Medicine, St. Louis, Missouri 63110, United States
ACS Med. Chem. Lett.20167 (10), pp 944–949
DOI: 10.1021/acsmedchemlett.6b00264
Publication Date (Web): August 18, 2016
Copyright © 2016 American Chemical Society

 
CLICK ON IMAGES
1H NMR (300 MHz, CDCl3, 27 °C) δ 7.88 (d, J = 8.3 Hz, 1H), 7.39-7.27 (m, 3H), 7.22-7.14 (m, 2H), 7.12-7.03 (m, 1H), 4.57 (td, J = 9.5, 2.5 Hz, 1H), 4.35-4.23 (m, 2H), 3.97-3.78 (m, 2H), 3.74-3.60 (m, 2H), 3.51 (ddd, J = 12.3, 9.9, 4.0 Hz, 1H), 3.40 (dd, J = 15.8, 5.1 Hz, 1H), 3.18 (dd, J = 9.9, 2.9 Hz, 1H), 3.12 (dd, J = 14.4, 2.6 Hz, 1H), 2.66 (s, 3H), 2.30-2.16 (m, 1H), 2.06 (d, J = 12.2 Hz, 1H), 1.96 (d, J = 12.1 Hz, 1H), 1.69-1.58 (m,1H), 1.58-1.45 (m, 2H), 1.23 (d, J = 6.8 Hz, 3H), 1.40-0.97 (m, 5H), 0.94 (d, J = 7.0 Hz, 3H).

13C NMR (75 MHz, CDCl3, 27 °C) δ 164.20, 160.92, 157.74, 154.80, 134.60, 130.26, 130.15, 129.56, 128.62, 127.82, 127.77, 127.68, 126.90, 124.27, 118.81, 118.50, 116.63, 116.35, 91.32, 88.40, 85.60, 64.86, 58.03, 51.64, 49.88, 48.51, 36.73, 34.51, 34.35, 34.31, 25.72, 25.28, 25.23, 15.76, 15.05.

HRMS (ESI) calc’d for C30H38FN3O5S [M+H]+ : 572.2589. Found: 572.2588.


1H NMR PREDICT
13C NMR PREDICT

REFERENCES

Discovery of 8-Membered Ring Sulfonamides as Inhibitors of Oncogenic Mutant Isocitrate Dehydrogenase 1
Jason M. Law, Sebastian C. Stark, Ke Liu, Norah E. Liang, Mahmud M. Hussain, Matthias Leiendecker, Daisuke Ito, Oscar Verho, Andrew M. Stern, Stephen E. Johnston, Yan-Ling Zhang, Gavin P. Dunn, Alykhan F. Shamji, and Stuart L. Schreiber
Publication Date (Web): August 18, 2016 (Letter)
DOI: 10.1021/acsmedchemlett.6b00264

FC1=CC(C#CC2=CC(O[C@@H](CN(C(NC3CCCCC3)=O)C)[C@H](C)CN([C@@H](C)CO)S4(=O)=O)=C4C=C2)=CC=C1

Wednesday 2 November 2016

Rush , few seats, ACS INDUSTRY SYMPOSIUM RECENT ADVANCES IN DRUG DEVELOPMENT IN PARTNERSHIP WITH DR. REDDY’S LABORATORIES HYDERABAD, INDIA 11-12 NOVEMBER 2016

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ACS INDUSTRY SYMPOSIUM

RECENT ADVANCES IN DRUG DEVELOPMENT IN PARTNERSHIP WITH DR. REDDY’S LABORATORIES HYDERABAD, INDIA

11-12 NOVEMBER 2016

click        http://acssymposium.org.in/
For registrations click above link





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bay of islands at Paihia, MEW ZEALAND
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Sunday 30 October 2016

BOSENTAN PRECURSOR






Molecular Formula:C57H60N10O12S2
Molecular Weight:1141.285 g/mol

4-tert-butyl-N-[6-[[5-[[6-[(4-tert-butylphenyl)sulfonylamino]-5-(2-methoxyphenoxy)-2-pyrimidin-2-ylpyrimidin-4-yl]oxymethyl]-2,2-dimethyl-1,3-dioxolan-4-yl]methoxy]-5-(2-methoxyphenoxy)-2-pyrimidin-2-ylpyrimidin-4-yl]benzenesulfonamide



N,N′-(6,6′-(2,2-Dimethyl-1,3-dioxolane-4,5-diyl)bis- (methylene)bis(oxy)bis(5-(2-methoxy phenoxy)-2,2′-bipyrimidine-6,4-diyl))bis(4-tert-butylbenzenesulfonamide)
Mp: 72−74 °C. 
1 H NMR (400 MHz, CDCl3): δ 1.25 (6H, s), 1.29 (18H, s), 3.84−3.90 (4H, m), 4.27−4.31 (2H, m), 6.84−6.87 (3H, t), 6.97−7.00 (2H, dd), 7.09−7.13 (3H, t), 7.43−7.45 (10H, m), 9.0−9.01 (4H, d), 8.43 (2H, br s); 
13C NMR (100 MHz, CDCl3): δ 25.88, 30.02, 34.10, 55.01, 61.53, 77.36, 108.43, 111.4, 118.73, 120.4, 124.09, 124.34, 126.67, 127.38, 128.35, 135.30, 138.25, 144.74, 148.62, 150.99, 156.07, 156.71, 160.56; 
MS: m/z 1142.2 (M + H); 
Elem. Anal: Found: C 59.87, H 5.20, N 12.38; Calcd for C57H60N10O12S2: C 59.99, H 5.30, N 12.27


Abstract Image
A new and efficient synthetic process for the synthesis of an endothelin receptor antagonist, bosentan monohydrate, involves the coupling of p-tert-butyl-N-(6-chloro-5-(2-methoxy phenoxy)-2,2′-bipyrimidin-4-yl)benzenesulfonamide (7) with (2,2-dimethyl-1,3-dioxolane-4,5-diyl)dimethanol (14) as a key step. This new process provides desired bosentan monohydrate (1) with better quality and yields. Our new methodology consists of technical innovations/improvements which totally eliminate the probability for the formation of critical impurities such as pyrimidinone 8, dimer impurity 9, and N-alkylated impurity 13 in the final drug substance.


CID 72198724.png


1H NMR PREDICT



13 C NMR PREDICT




Org. Process Res. Dev.201317 (8), pp 1021–1026
DOI: 10.1021/op400100s
http://pubs.acs.org/doi/suppl/10.1021/op400100s
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CC1(OC(C(O1)COC2=NC(=NC(=C2OC3=CC=CC=C3OC)NS(=O)(=O)C4=CC=C(C=C4)C(C)(C)C)C5=NC=CC=N5)COC6=NC(=NC(=C6OC7=CC=CC=C7OC)NS(=O)(=O)C8=CC=C(C=C8)C(C)(C)C)C9=NC=CC=N9)C