@article { ISI:000252339100015, title = {Efficient method for the synthesis of acylals from aldehydes under solvent-free conditions catalyzed by antimony trichloride}, journal = {Synthetic Communications}, volume = {38}, number = {1}, year = {2008}, month = {MAY}, pages = {128-134}, publisher = {TAYLOR \& FRANCIS INC}, type = {Article}, address = {325 CHESTNUT ST, SUITE 800, PHILADELPHIA, PA 19106 USA}, abstract = {

A mild and efficient method has been developed for the preparation of acylals from aldehydes catalyzed by antimony trichloride under solvent-free conditions in very good to excellent yields. The easy availability, low cost, and ease of handling of the catalyst make this procedure especially attractive for large-scale synthesis.

}, keywords = {acetic anhydride, Acylals, aldehydes, antimony trichloride, solvent-free conditions}, issn = {0039-7911}, doi = {10.1080/00397910701651284}, author = {Bhattacharya, Asish K. and Mujahid, Mohammad and Natu, Arvind A.} } @article { ISI:000270106700015, title = {Synthesis and in vitro study of 14-aryl-14H-dibenzo[a.j]xanthenes as cytotoxic agents}, journal = {Bioorganic \& Medicinal Chemistry Letters}, volume = {19}, number = {19}, year = {2009}, month = {OCT}, pages = {5590-5593}, publisher = {PERGAMON-ELSEVIER SCIENCE LTD}, address = {THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND}, abstract = {

A simple and expedient method for the synthesis of a series of 14-aryl-14H-dibenzo[a.j]xanthenes is described through a one-pot condensation of beta-naphthol with aryl aldehydes catalysed by TaCl(5) under solvent-free conventional heating. The major advantages of the present method are: high yields, less reaction time, solvent-free condition and easy purification of the products. The synthesized 14-aryl-14H-dibenzo[a.j]xanthenes were evaluated against a panel of six human cancer lines of different tissues. Synthesized compound 30 showed IC(50) of 37.9 and 41.3 mu M against Colo-205 and 502713, respectively, whereas 3g showed IC(50) of 41.9 mu M against Colo-205. (C) 2009 Elsevier Ltd. All rights reserved.

}, keywords = {Aldehyde, beta-Naphthol, condensation, Cytotoxicity, One-pot reaction, Solvent-free, Tantalum(V) chloride, Xanthenes}, issn = {0960-894X}, doi = {10.1016/j.bmcl.2009.08.033}, author = {Bhattacharya, Asish K. and Rana, Kalpeshkumar C. and Mujahid, Mohammad and Sehar, Irum and Saxena, Ajit K.} } @article { ISI:000277738400017, title = {Simple and efficient synthesis of 2-Aryl-2,3-dihydroquinolin-4(1H)-ones using silica chloride as a new catalyst under solvent-free conditions}, journal = {Synthetic Communications}, volume = {40}, number = {9}, year = {2010}, month = {APR}, pages = {PII 921000023}, publisher = {TAYLOR \& FRANCIS INC}, address = {325 CHESTNUT ST, SUITE 800, PHILADELPHIA, PA 19106 USA}, abstract = {

A mild, efficient, and high-yielding method for the synthesis of 2-aryl-2,3-dihydroquinolin-4(1H)-ones from their corresponding 2-amino chalcones using silica chloride (SiO2Cl) under solvent-free conditions is described. A series of 2-aryl-2,3-dihydroquinolin-4(1H)-ones containing both electron-donating and electron-withdrawing substituents were synthesized.

}, keywords = {2-Amino chalcones, 2-aryl-2, 3-dihydroquinolin-4(1H)-ones, Microwave, silica chloride}, issn = {0039-7911}, doi = {10.1080/00397910903097252}, author = {Muthukrishnan, Murugan and Mujahid, Mohammad and Punitharasu, V. and Dnyaneshwar, D. A.} } @article { ISI:000295444000015, title = {First asymmetric synthesis of the antiepileptic drug lacosamide (Vimpat (R)) based on a hydrolytic kinetic resolution strategy}, journal = {Tetrahedron-Asymmetry}, volume = {22}, number = {12}, year = {2011}, month = {JUN}, pages = {1353-1357}, publisher = {PERGAMON-ELSEVIER SCIENCE LTD}, address = {THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND}, abstract = {

An efficient asymmetric synthesis of the new antiepileptic drug, Lacosamide is described in high enantiopurity (\>98\% ee), using Jacobsen{\textquoteright}s hydrolytic kinetic resolution strategy as a key step. (C) 2011 Elsevier Ltd. All rights reserved.

}, issn = {0957-4166}, doi = {10.1016/j.tetasy.2011.07.024}, author = {Muthukrishnan, Murugan and Mujahid, Mohammad and Sasikumar, M. and Mujumdar, P.} } @article { ISI:000290075500029, title = {Syntheses and biological evaluation of new triazole-spirochromone conjugates as inhibitors of mycobacterium tuberculosis}, journal = {Tetrahedron Letters}, volume = {52}, number = {18}, year = {2011}, month = {MAY}, pages = {2387-2389}, publisher = {PERGAMON-ELSEVIER SCIENCE LTD}, address = {THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND}, abstract = {

A series of novel 1,2,3-triazole fused spirochromone conjugates have been synthesized bearing both spirochromone moiety as well as a 1,2,3-triazole moiety. Some of the compounds have exhibited potential activity against Mycobacterium tuberculosis (virulent strain H37Rv). In particular 5e proved to be the most potent derivative exhibiting MIC = 0.78 mu g/mL. (C) 2011 Elsevier Ltd. All rights reserved.

}, keywords = {Antitubercular activity, Click chemistry, Mycobacterium tuberculosis, Spirochromones}, issn = {0040-4039}, doi = {10.1016/j.tetlet.2011.02.099}, author = {Muthukrishnan, Murugan and Mujahid, Mohammad and Yogeeswari, P. and Sriram, D.} } @article { ISI:000311473600008, title = {Alternate synthesis of enantiomerically pure levetiracetam (Keppra (R))}, journal = {Tetrahedron-Asymmetry}, volume = {23}, number = {20-21}, year = {2012}, month = {NOV}, pages = {1512-1515}, publisher = {PERGAMON-ELSEVIER SCIENCE LTD}, address = {THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND}, abstract = {

A simple and efficient synthesis of levetiracetam has been achieved with high enantiopurity (\>99\%) starting from commercially available benzyl glycidyl ether. The method is amenable for industrial scale-up. (C) 2012 Elsevier Ltd. All rights reserved.

}, issn = {0957-4166}, doi = {10.1016/j.tetasy.2012.10.006}, author = {Mujahid, Mohammad and Mujumdar, P. and Sasikumar, M. and Kunte, S. S. and Muthukrishnan, Murugan} } @article { ISI:000320914200003, title = {Efficient bakers{\textquoteright} yeast-catalyzed multicomponent synthesis of -aminophosphonates in one pot}, journal = {Synthetic Communications}, volume = {43}, number = {19}, year = {2013}, month = {OCT}, pages = {2583-2589}, publisher = {TAYLOR \& FRANCIS INC}, address = {325 CHESTNUT ST, SUITE 800, PHILADELPHIA, PA 19106 USA}, abstract = {

Utilizing bakers{\textquoteright} yeast (Saccharomyces cerevisiae) as a biocatalyst, synthesis of -aminophosphonates in one pot has been accomplished by the three-component reaction of an aldehyde, an amine, and diethyl phosphite in moderate to good yields under solvent-free reaction conditions. Supplemental materials are available for this article. Go to the publisher{\textquoteright}s online edition of Synthetic Communications (R) to view the free supplemental file.

}, keywords = {-aminophosphonates, aldehydes, amines, green chemistry, Saccharomyces cerevisiae, solvent-free conditions}, issn = {0039-7911}, doi = {10.1080/00397911.2012.721918}, author = {Bhattacharya, Asish K. and Mujahid, Mohammad} } @article { ISI:000327312400019, title = {New enantioselective synthesis of the anticonvulsant drug pregabalin (lyrica) based on a hydrolytic kinetic resolution method}, journal = {Chirality}, volume = {25}, number = {12}, year = {2013}, month = {DEC}, pages = {965-969}, publisher = {WILEY-BLACKWELL}, address = {111 RIVER ST, HOBOKEN 07030-5774, NJ USA}, abstract = {

A practical and efficient enantioselective synthesis of the anticonvulsant drug pregabalin is described for the first time using Jacobsen{\textquoteright}s hydrolytic kinetic resolution of a terminal epoxide as a key step and a source of chirality. Chirality 25:965-969, 2013. (c) 2013 Wiley Periodicals, Inc.

}, keywords = {anticonvulsant drug, Hydrolytic kinetic resolution, pregabalin}, issn = {0899-0042}, doi = {10.1002/chir.22253}, author = {Mujahid, Mohammad and Muthukrishnan, Murugan} } @article { ISI:000314693400052, title = {Synthesis and antitubercular activity of amino alcohol fused spirochromone conjugates}, journal = {Bioorganic \& Medicinal Chemistry Letters}, volume = {23}, number = {5}, year = {2013}, month = {MAR}, pages = {1416-1419}, publisher = {PERGAMON-ELSEVIER SCIENCE LTD}, address = {THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND}, abstract = {

A series of 21 new amino alcohol fused spirochromone conjugates have been synthesized, characterized with analytical data and evaluated their antimycobacterial activity against Mycobacterium tuberculosis (virulent strain H37Rv) in vitro. Some of the compounds exerted significant inhibition, in particular, compound 4f found to be the most potent derivative exhibiting MIC = 3.13 mu g/mL. (C) 2013 Elsevier Ltd. All rights reserved.

}, keywords = {Amino alcohol, Antitubercular activity, Mycobacterium tuberculosis, Spirochromones}, issn = {0960-894X}, doi = {10.1016/j.bmcl.2012.12.073}, author = {Mujahid, Mohammad and Gonnade, Rajesh G. and Yogeeswari, P. and Sriram, D. and Muthukrishnan, Murugan} } @article { ISI:000336700700003, title = {New enantioselective synthesis of (S)-2-ethoxy-3-(4-hydroxyphenyl)Propanoic acid esters (EEHP and IEHP), useful pharmaceutical intermediates of PPAR agonists}, journal = {Tetrahedron Letters}, volume = {55}, number = {21}, year = {2014}, month = {MAY}, pages = {3223-3226}, publisher = {PERGAMON-ELSEVIER SCIENCE LTD}, type = {Article}, address = {THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND}, abstract = {

A new enantioselective synthetic route to the title compounds has been developed in a simple and practical way with high enantiopurity using commercially available starting material. (C) 2014 Elsevier Ltd. All rights reserved.

}, keywords = {EEHP, Epoxide, IEHP, PPAR agonists}, issn = {0040-4039}, doi = {10.1016/j.tetlet.2014.04.021}, author = {Mujahid, Mohammad and Kunte, S. S. and Muthukrishnan, Murugan} } @article { ISI:000338109600007, title = {New enantioselective synthesis of the anti-parkinson agent safinamide}, journal = {Synthesis-Stuttgart}, volume = {46}, number = {13}, year = {2014}, month = {JUL}, pages = {1751-1756}, publisher = {GEORG THIEME VERLAG KG}, type = {Article}, address = {RUDIGERSTR 14, D-70469 STUTTGART, GERMANY}, abstract = {

An alternative highly enantioselective synthesis of the anti-Parkinson agent safinamide from simple, commercially available, starting materials is described. The protocol might also be useful in the synthesis of structural variants of safinamide, such as ralfinamide or related analogues

}, keywords = {Amides, medicinal chemistry, safinamide, stereoselective synthesis}, issn = {0039-7881}, doi = {10.1055/s-0033-1341104}, author = {Reddi, Anjaneyulu and Mujahid, Mohammad and Sasikumar, Murugesan and Muthukrishnan, Murugan} } @article {43027, title = {Spirochromone-chalcone conjugates as antitubercular agents: synthesis, bio evaluation and molecular modeling studies}, journal = {RSC Advances}, volume = {5}, year = {2015}, month = {DEC}, abstract = {

A new series of spirochromone annulated chalcone conjugates were synthesized and evaluated for their antitubercular activity against Mycobacterium tuberculosis H37Rv strain. These compounds were subjected to molecular modeling studies using docking and chemoinformatics based approaches. The docking simulations were performed against a range of known receptors for chalcone derived compounds to reveal MTB phosphotyrosine phosphatase B [MtbPtpB] protein as the most probable target based on the high binding affinity scores. Five compounds exhibit significant inhibition, showing minimum inhibitory concentration values i.e. MIC values ranging from 3.13{\textendash}12.5 μg mL-1. Further analysis of the synthesized compounds with known and in-house developed chemoinformatics tools unequivocally established their potential as anti-tubercular compounds. QSAR modeling revealed a quantitative relationship between biological activities and frontier molecular orbital energies of synthesized compounds. The predictive model can be employed further for virtual screening of new compounds in this series.

}, doi = {10.1039/C5RA21737G}, author = {Mujahid, Mohammad and Perumal, Yogeeswari and Sriram, D. and Basavanag, U. M. V. and D{\i}az-Cervantes, Erik and Cordoba-Bahena, Luis and Robles, Juvencio and Gonnade, Rajesh Ghanshyam and Karthikeyan, Muthukumarasamy and Vyas, Renu and Krishnan, M. Muthu} } @article {43843, title = {Efficient synthesis of the opioid analgesic (R)-phenampromide via an aziridinium ion}, journal = {Tetrahedron-Asymmetry}, volume = {28}, year = {2017}, month = {JUL}, pages = {983-986}, type = {Article}, abstract = {A simple and efficient synthesis of the opioid analgesic agent (R)-phenampromide with high enantiopurity (> 99\% ee) via the formation of an aziridinium ion as a key step using commercially available starting material is described. (C) 2017 Elsevier Ltd. All rights reserved.}, doi = {10.1016/j.tetasy.2017.06.001}, author = {Mujahid, Mohammad and Mujumdar, Prashant and Sasikumar, Murugesan and Deshmukh, Shirish P. and Muthukrishnan, Murugan} } @article {43499, title = {New and efficient enantioselective synthesis of both enantiomers of the calcium channel blocker bepridil}, journal = {New Journal of Chemistry}, volume = {41}, year = {2017}, month = {JAN}, pages = {824-829}, abstract = {A concise and efficient enantioselective synthesis of both enantiomers of bepridil, a calcium channel blocker, is reported. Jacobsen{\textquoteright}s hydrolytic kinetic resolution method was utilized to resolve racemic 2-(isobutoxymethyl) oxirane. The incorporation of the succinimide moiety by the Mitsunobu reaction, which was investigated in detail, occurred without any loss of enantioselectivity. Using this strategy, both enantiomers of the target molecule were obtained in good yield and with high enantiopurity (ee > 99\%).}, doi = {10.1039/c6nj02928k}, author = {Mujahid, Mohammad and Subramanian, Jambu and Nalla, Viswanadh and Sasikumar, Murugesan and Kunte, Sunita Sharad and Muthukrishnan, Murugan} }