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Synthesis of subglutinol A (150), subglutinol B (151), and higginsianin A (153) according to Baran and co-workers. dba = dibenzyl-ideneacetone, DIC = N,N’-diisopropylcarbodiimide, NHPI = N-hydroxyphthalimide, NMO = 4-methylmorpholine N-oxide, Cu(sal)2 = copper(II) 3,5-diisopropylsalicylate, TCNHPI = N-hydroxytetrachlorophthalimide, TES = triethylsilyl, TPAP = tetrapropylammonium perruthenate.
