(2R,9R)-1,2;9,10-di-O-isopropylidene-5-decyne-1,2,9,10-tetraol

(2R)-hex-5-yne-1,2-diol

(2'R,2''R,5'R, 5R'')-[5'-(5''-(tert-butyldimethylsilyloxy)methyltetrahydrofuran-2''-yl)tetrahydrofuran-2'-yl]carbaldehyde

(2R,2R',5R, 5R')-[5-(5'-(tert-butyldimethylsilyloxy)methyltetrahydrofuran-2'-yl)tetrahydrofuran-2-yl]methanol