@article { ISI:000240786300012, title = {Total synthesis of (-)-radicamine B}, journal = {Tetrahedron Letters}, volume = {47}, number = {39}, year = {2006}, month = {SEP}, pages = {6979-6981}, publisher = {PERGAMON-ELSEVIER SCIENCE LTD}, type = {Article}, address = {THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND}, abstract = {

The synthesis of a chiral cyclic nitrone with L-arabino configuration and its application in the total synthesis of radicamine B is reported. An agreement in the spectral data with natural radicamine B but specific rotation with an opposite sign warranted a revision of the absolute configuration of radicamine B. (c) 2006 Elsevier Ltd. All rights reserved.

}, keywords = {codonopsinine, Cyclic nitrone, Grignard addition, polyhydroxy pyrrolidine alkaloids, radicamine B}, issn = {0040-4039}, doi = {10.1016/j.tetlet.2006.07.120}, author = {Gurjar, Mukund K. and Borhade, Ramdas G. and Puranik, Vedavati G. and Ramana, C. V.} } @article { ISI:000237651600037, title = {Towards the total synthesis of clavosolide A}, journal = {Tetrahedron Letters}, volume = {47}, number = {22}, year = {2006}, month = {MAY}, pages = {3781-3783}, publisher = {PERGAMON-ELSEVIER SCIENCE LTD}, type = {Article}, address = {THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND}, abstract = {

The synthesis of the monomeric unit of clavosolide A from 1,2:5,6-di-O-isopropylidene-alpha-D-glucose is presented. (c) 2006 Elsevier Ltd. All rights reserved.

}, keywords = {clavosolide A, diolide, reductive oxirane opening, seco acid, Simmons-Smith cyclopropanation}, issn = {0040-4039}, doi = {10.1016/j.tetlet.2006.03.107}, author = {Yakambram, Pedduri and Puranik, Vedavati G. and Gurjar, Mukund K.} } @article {42816, title = {Total syntheses of schulzeines B and C}, journal = {Journal of Organic Chemistry}, volume = {72}, year = {2007}, month = {AUG}, pages = {6591-6594}, type = {Article}, abstract = {

Schulzeines B (2) and C (3) were synthesized by a convergent strategy using epimeric tricyclic lactam building blocks, 4 and 5, and the C28 fatty acid side chain 6. Syntheses of tricyclic lactams (4/5) were achieved by Bischler-Napieralski reaction. Sharpless asymmetric dihy-droxylation and BINAL-H-mediated asymmetric reduction of an enone was employed to prepare the key fatty acid side chain 6. The spectral as well as analytical data of 2 and 3 were in good agreement with the reported data for the natural products, thus confirming their assigned structures.

}, keywords = {Alpha-Glucosidase Inhibitors; Asymmetric Dihydroxylation; Adjuvant Activity; Pinellic Acid; Ketones; Reduction; Reagents; Configuration; Imbricatine;Alkaloids}, doi = {10.1021/jo070560h}, author = {Gurjar, Mukund K. and Pramanik, Chinmoy and Bhattasali, Debabrata and Ramana, Chepuri V. and Mohapatra, Debendra K.} } @article { ISI:000255698500020, title = {Total synthesis and determination of relative and absolute configuration of multiplolide A}, journal = {Journal of Organic Chemistry}, volume = {73}, number = {10}, year = {2008}, month = {MAY}, pages = {3817-3822}, publisher = {AMER CHEMICAL SOC}, type = {Article}, address = {1155 16TH ST, NW, WASHINGTON, DC 20036 USA}, abstract = {

A flexible approach for total syntheses of possible multiplolide A diastereomers establishing the relative and absolute configuration is documented. The adopted strategy features ring-closing metathesis (RCM) as the key reaction and screening of a set of substrates for the feasibility of RCM in general and for the requisite E-configuration of ring olefin in particular. Selective protecting groups manipulation prior to the assembly of the central macrocyclic core was instrumental in installing the epoxide functionality on a fully deprotected nonenolide at the end of the synthesis.

}, issn = {0022-3263}, doi = {10.1021/jo7027568}, author = {Ramana, C. V. and Khaladkar, Tushar P. and Chatterjee, Soumitra and Gurjar, Mukund K.} } @article { ISI:000258030400010, title = {Total synthesis of (S)-(-)-curvularin: a ring-closing-metathesis-based construction of the macrocyclic framework}, journal = {Synlett}, number = {12}, year = {2008}, month = {JUL}, pages = {1801-1804}, publisher = {GEORG THIEME VERLAG KG}, type = {Article}, address = {RUDIGERSTR 14, D-70469 STUTTGART, GERMANY}, abstract = {

A convergent, flexible, and efficient approach to the synthesis of curvularin is described. Key step is the high-yielding macrocyclic ring formation by ring-closing metathesis (RCM) using the Grubbs second-generation catalyst.

}, keywords = {curvularin, Cytotoxic, Pinnick oxidation, Ring-closing metathesis, Wittig reaction}, issn = {0936-5214}, doi = {10.1055/s-2008-1078504}, author = {Mohapatra, Debendra K. and Rahaman, Hasibur and Pal, Rita and Gurjar, Mukund K.} } @article { ISI:000265052800004, title = {Total synthesis of verbalactone: an efficient, carbohydrate-based approach}, journal = {Tetrahedron Letters}, volume = {50}, number = {18}, year = {2009}, month = {MAY}, pages = {2048-2049}, publisher = {PERGAMON-ELSEVIER SCIENCE LTD}, address = {THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND}, abstract = {

A carbohydrate-based strategy for the total synthesis of verbalactone has been described. (3R,5R)-3,5-dihydroxydecanoic acid was dimerised under Yamaguchi conditions to provide verbalactone in an overall yield of 17\% starting from 3-deoxy-1,2:5,6-di-O-isopropylidine-alpha-D-glucofuranose. (c) 2009 Elsevier Ltd. All rights reserved.

}, keywords = {Chiral pool approach, D-Glucose, verbalactone, Yamaguchi{\textquoteright}s macrolactonization}, issn = {0040-4039}, doi = {10.1016/j.tetlet.2009.02.062}, author = {Salunke, Ganesh B. and Shivakumar, I. and Gurjar, Mukund K.} }