(4R,5S)-2,2-二甲基-1,3-二氧戊环-4,5-二甲醛

(R)-(+)-2,2-二甲基-1,3-二氧戊环-4-甲醛

2,4-O-isopropylidene-D-threose

2,4-O-isopropylidene-D-erythrose

1,3:4,6-双-o-(4-甲氧基亚苄基)-D-甘露糖醇