01128nas a2200217   4500008004100000022001400041245003100055210002700086260007500113300001400188490000700202520051700209653001400726653001600740653001100756653001400767653003000781100001900811700001900830856006100849       2014                        eng d  a0039-788100aSynthesis of (+)-harmicine0 aSynthesis of harmicine  aRUDIGERSTR 14, D-70469 STUTTGART, GERMANYbGEORG THIEME VERLAG KGcOCT  a2591-25940 v463 a<p>A facile convergent access to the important indole alkaloid (+)-harmicine is described, starting from tryptamine and (R)-acetoxysuccinic anhydride via the corresponding acetoxysuccinimide in very good overall yield. Regioselective reduction of an unsymmetrical imide carbonyl group and acid-catalyzed stereoselective intramolecular cyclization were the key features involved. The directing group to induce asymmetry was finally detached via the corresponding iodide by using tributyltin hydride chemistry.</p>10aalkaloids10acyclization10aimides10areduction10astereoselective synthesis1 aMondal, Pravat1 aArgade, N., P.  uhttps://library.ncl.res.in/content/synthesis-harmicine-000834nas a2200229   4500008004100000022001400041245003400055210003400089260007500123300001200198490000700210520017100217653001500388653001300403653002100416653001400437653002100451100002400472700002300496700001900519856006600538       2015                        eng d  a0039-788100aSynthesis of yangjinhualine A0 aSynthesis of yangjinhualine A  aRUDIGERSTR 14, D-70469 STUTTGART, GERMANYbGEORG THIEME VERLAG KGcFEB  a485-4880 v473 a<p>Selective reduction of 3-(4-hydroxyphenyl)-2-methylmaleic anhydride provides access the corresponding gamma-hydroxybutenolide natural product yangjinhualine A.</p>10aanhydrides10alactones10aNatural products10areduction10aRegioselectivity1 aDeore, Prashant, S.1 aBatwal, Ramesh, U.1 aArgade, N., P.  uhttps://library.ncl.res.in/content/synthesis-yangjinhualine-001440nas a2200241   4500008004100000022001400041245017500055210006900230260007500299300001400374490000700388520045500395653002000850653002500870653002300895653005000918653002500968653002100993653001401014100002301028700001901051856012801070       2016                        eng d  a0039-788100aChemoenzymatic access to (+)-artabotriol and its application in collective synthesis of (+)-grandiamide D, (-)-tulipalin B, (+)-spirathundiol, and (+)-artabotriolcaffeate0 aChemoenzymatic access to artabotriol and its application in coll  aRUDIGERSTR 14, D-70469 STUTTGART, GERMANYbGEORG THIEME VERLAG KGcJUL  a2130-21360 v483 a<p>Starting from dimethyl (+/-)-2-hydroxy-3-methylenesuccinnate chemoenzymatic collective formal/total synthesis of enantiomerically pure bioactive natural products has been described via the advanced level common precursor (+)-artabotriol. An efficient enzymatic resolution with high enantiomeric purity, selective diester to diol reduction, and requisite dehydrative coupling reactions without any racemization are the significant topographies.</p>10a(+)-artabotriol10acollective synthesis10acoupling reactions10adimethyl (+/-)-2-hydroxy-3-methylenesuccinate10aEnzymatic resolution10aNatural products10areduction1 aBatwal, Ramesh, U.1 aArgade, N., P.  uhttps://library.ncl.res.in/content/chemoenzymatic-access-artabotriol-and-its-application-collective-synthesis-grandiamide-d