01186nas a2200157   4500008004100000245009000041210006900131260000800200300001400208490000700222520059700229100002800826700002400854700002800878856012200906       2017                        eng d00aBiomimetic total synthesis of angiopterlactone B and other potential natural products0 aBiomimetic total synthesis of angiopterlactone B and other poten  cJUL  a3564-35670 v193 aA one-pot biomimetic synthesis of (-)-angiopterlactone B and its enantiomer (+)-angiopterlactone B has been accomplished via TBAF-catalyzed tandem ring contraction followed by oxa-Michael/Michael addition sequence. Comparison of specific optical rotations, absolute configurations, and CD spectra of natural, synthesized (-)-angiopterlactone B and (+)-angiopterlactone B unequivocally proves that the isolated angiopterlactone B must be levorotatory. Synthesis of hitherto undiscovered natural products 18 and 20 and analogues of angiopterlactone B demonstrate the versatility of this method.1 aKotammagari, Tharun, K.1 aGonnade, Rajesh, G.1 aBhattacharya, Asish, K.  uhttps://library.ncl.res.in/content/biomimetic-total-synthesis-angiopterlactone-b-and-other-potential-natural-products