中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
—— | (E)-6,7-dideoxy-1,2:3,4-di-O-isopropylidene-α-D-galacto-oct-6-enopyranose | 96796-54-2 | C14H22O6 | 286.325 |
—— | (E)-6,7-didehydro-6,7-dideoxy-1,2:3,4-di-O-isopropylidene-α-D-galacto-octodialo-1,5-pyranose | 100759-67-9 | C14H20O6 | 284.309 |
1,2:3,4-二-O-异亚丙基-α-D-半乳糖-己二醛-1,5-吡喃糖 | (3aR,5S,5aR,8aS,8bR)-2,2,7,7-Tetramethyl-tetrahydro-bis[1,3]dioxolo[4,5-b;4',5'-d]pyran-5-carbaldehyde | 4933-77-1 | C12H18O6 | 258.271 |
Methyl (E)-2,3-di-O-benzyl-6,7,8-trideoxy-α-D-galacto-oct-6-enopyranoside, a potential precursor to lincosamine, has been prepared from both methyl α-D-galactopyranoside and methyl α-D-glucopyranoside, with the required inversion at C4 in the latter sequence being effected by a conventional oxidation-reduction. As well, (E)-6,7-dideoxy-1,2: 3,4-di-O-isopropylidene-α-D-galacto-oct-6-enose and (E)- and (Z)-6,7,8- trideoxy-1,2:3,4-di-O-isopropylidene-α-D-galacto-oct-6-enose have been prepared from 1,2: 3,4-di-O-isopropylidene-α-D-galactose.