@article { ISI:000301445700014, title = {Carbohydrate-based synthesis of the C13-C22 fragment of amphidinolide X}, journal = {European Journal of Organic Chemistry}, number = {9}, year = {2012}, month = {MAR}, pages = {1753-1758}, publisher = {WILEY-V C H VERLAG GMBH}, address = {BOSCHSTRASSE 12, D-69469 WEINHEIM, GERMANY}, abstract = {

A facile carbohydrate-based route was developed for the synthesis of the tetrahydrofuran (C13C22) fragment of amphidinolide X. Starting from L-sorbose, the key reactions followed include the stereoselective synthesis of a quaternary center at C1, BartonMcCombie deoxygenation at C2, Mitsunobu inversion at C3, and chain elongation by a Wittig reaction at C5.

}, keywords = {Cytotoxicity, Macrolides, Mitsunobu inversion, Natural products, Wittig reactions}, issn = {1434-193X}, doi = {10.1002/ejoc.201101605}, author = {Gurjar, Mukund K. and Yellol, Gorakh S. and Mohapatra, Debendra K.} } @article { ISI:000321573300021, title = {Total synthesis of umuravumbolide and hyptolide through silicon-tethered ring-closing metathesis}, journal = {European Journal of Organic Chemistry}, volume = {2013}, number = {21}, year = {2013}, month = {JUL}, pages = {4586-4593}, publisher = {WILEY-V C H VERLAG GMBH}, address = {BOSCHSTRASSE 12, D-69469 WEINHEIM, GERMANY}, abstract = {

The total synthesis of umuravumbolide and hyptolide has been achieved in a efficient manner by using temporary silicon-tethered ring-closing metathesis and cross-coupling reactions as key steps. The stereogenic centres were generated by means of proline-catalysed -aminoxylation of aldehydes and Brown{\textquoteright}s asymmetric allylation method.

}, keywords = {lactones, Metathesis, Silanes, synthetic methods, Total synthesis, Wittig reactions}, issn = {1434-193X}, doi = {10.1002/ejoc.201300302}, author = {Chowdhury, Partha Sarathi and Kumar, Pradeep} } @article { ISI:000328606500015, title = {Concise enantioselective syntheses of (+)-L-733,060 and (2S,3S)-3-hydroxypipecolicw acid by cobalt(III)(salen)-catalyzed two-stereocenter hydrolytic kinetic resolution of racemic azido epoxides}, journal = {Synlett}, volume = {25}, number = {1}, year = {2014}, month = {JAN}, pages = {102-104}, publisher = {GEORG THIEME VERLAG KG}, type = {Article}, address = {RUDIGERSTR 14, D-70469 STUTTGART, GERMANY}, abstract = {

An efficient synthesis of the 2,3-disubstituted piperidines (+)-L-733,060 and (2S,3S)-3-hydroxypipecolic acid (99\% ee) in high optical purity from commercially available starting materials is described. The strategy involves a cobalt-catalyzed hydrolytic kinetic resolution of a racemic azido epoxide with two stereocenters and an intramolecular reductive cyclization as key reactions.

}, keywords = {azides, cyclizations, epoxides, piperidines, stereoselective synthesis, Wittig reactions}, issn = {0936-5214}, doi = {10.1055/s-0033-1340074}, author = {Devalankar, Dattatray A. and Chouthaiwale, Pandurang V. and Sudalai, Arumugam} } @article { ISI:000339494600024, title = {Stereoselective approach to 2,6-disubstituted piperidin-3-ol: synthesis of (-)-deoxoprosopinine and (+)-deoxoprosophylline}, journal = {European Journal of Organic Chemistry}, number = {22}, year = {2014}, month = {AUG}, pages = {4897-4902}, publisher = {WILEY-V C H VERLAG GMBH}, address = {BOSCHSTRASSE 12, D-69469 WEINHEIM, GERMANY}, abstract = {

A simple and highly efficient approach to an enantioenriched 2,6-disubstituted piperidin-3-ol skeleton is developed from an aldehyde as a starting material by using organocatalytic and asymmetric dihydroxylation as the key steps. Its application to the total synthesis of (-)-deoxoprosopinine and (+)-deoxoprosophylline is also reported.

}, keywords = {alkaloids, Amination, Amino alcohols, synthetic methods, Wittig reactions}, issn = {1434-193X}, doi = {10.1002/ejoc.201402363}, author = {Jha, Vishwajeet and Kauloorkar, Shruti Vandana and Kumar, Pradeep} }