(3aR,4S,6R,6aR)-tetrahydro-6-methoxy-2,2-dimethylfuro-[3,4-d][1,3]dioxole-4-carbaldehyde 、
1-甲氧基-1,3-丁二烯 在
Eu(fod)3 作用下,
50.0 ℃
、1099.99 MPa
条件下,
生成 (2S:6S)-2-methoxy-6-(methyl 2',3'-O-isopropylidene-β-D-ribo-pentafuranoside)-5,6-dihydro-2H-pyran 、 (2R:6S)-2-methoxy-6-(methyl 2',3'-O-isopropylidene-β-D-ribo-pentafuranoside)-5,6-dihydro-2H-pyran 、 (2S:6R)-2-methoxy-6-(methyl 2',3'-O-isopropylidene-β-D-ribo-pentafuranoside)-5,6-dihydro-2H-pyran 、
(2R:6R)-2-methoxy-6-(methyl 2',3'-O-isopropylidene-β-D-ribo-pentafuranoside)-5,6-dihydro-2H-pyran