中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
—— | 5,5-bis-(3,4-dimethoxy-phenyl)-3,4-dimethyl-dihydro-furan-2-one | 98333-30-3 | C22H26O6 | 386.445 |
—— | rac-(2R,3S)-1-(3,4-dimethoxyphenyl)-2,3-dimethylpent-4-en-1-one | —— | C15H20O3 | 248.322 |
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
—— | (±)-isogalbulin | 521-54-0 | C22H28O4 | 356.462 |
—— | (+/-)-galbulin | 521-54-0 | C22H28O4 | 356.462 |
—— | (±)-cyclogalgravin | —— | C22H26O4 | 354.446 |
—— | 4-oxogalbulin | —— | C22H26O5 | 370.445 |
All the stereoisomers of butanol type 1,7-seco-2,7′-cyclolignane were stereoselectively synthesized by employing (S)- and (R)-Evans’ auxiliaries to construct the stereochemistry. (+)- and (−)-Kadangustin J and their diastereomers were also prepared. The optical purity of the synthesized butanol type 1,7-seco-2,7′-cyclolignane was more than 99%ee.