p. 311 - 316
(2007/10/02)(2S,3R)-(+)-2-hydroxy-3-methylglutaric acid γ-lactone
(-)-3-carboxy-4-(1-hydroxy-2-trityloxyethyl)-1-pyrazoline γ-lactone
(S)-4-Methyl-5-trityloxymethyl-dihydro-furan-2-one
(4R,5S)-5-(hydroxymethyl)-4-methyldihydrofuran-2(3H)-one
(5S)-5-[(trityloxy)methyl]tetrahydro-2-furanone