p. 207 - 223
(2007/10/02)D-Ribono-1,4-lactone
trityl chloride
(3R,4S,5R)-3,4-dihydroxy-5-(trityloxymethyl)-dihydrofuran-2(3H)-one
1,1'-Thiocarbonyldiimidazole
(4R,5S)-4-Phenyl-5-trityloxymethyl-dihydro-furan-2-one
(4R,5S)-4-sec-Butyl-5-trityloxymethyl-dihydro-furan-2-one
(4S,5S)-4-Butyl-5-trityloxymethyl-dihydro-furan-2-one
(4S,5S)-4-Propyl-5-trityloxymethyl-dihydro-furan-2-one
(4R,5S)-4-Isopropyl-5-trityloxymethyl-dihydro-furan-2-one