“…Nach VFC (40 g, PE:E = 2:l) wurden 86 mg (16%) 8a und 291 mg (550/) 8b erhalten. -7,8,8trimethyl-4,7-methanobenzofurun) 11.4 (3q; 6 CH3); Alkoxyrcst: 80.6 (d; CHOMBE), 74.1 (d; CHOCH,), 71.8 (ti CH20CH,), 67.0 (t; CH,OMBE), 58.8 (9;2 OCH, (1. )-1,3-Di-O-methy1-2,4-his(O-MBE)erythrit ( [ 2 R -( 2 a ( l R * -(2'S*,3a'R*,4'R*, 7'R*,7a'R*) ,2S*) ,3ua,4P,7P,7aa)]-2, 2'-[[ (2-me- 7,8,8-trimethyl-4,7-methanobenzofuran) 1 (s; 2 C-7), 46.5 (s; 2 C-8), 45.6 (d; 2 C-3a), 38.3 (t; 2 C-3), 32.1 (t; 2 C-6), 28.6 (t; 2 C-5), 22.5/20.1/ 11.2 (3q; 6 CH3); Alkoxyrest: 80.1 (d; CHOMBE), 73.1 (d; CHOCHj), 71.5 (t; CHZOCH,), 65.8 (ti CH20MBE), 58.…”