反应详情

309 mg of (2S,3S)-3-(1,3-dioxo-2,3-dihydro-1H-isoindol-2-yl)-2-hydroxy-4-phenylbutyraldehyde and 238 mg of N-tert.butyl-decahydro-(4aS,8aS)-isoquinoline-3(S)-carboxamide are dissolved in 5 ml of acetic acid and treated portionwise with 120 mg of sodium cyanoborohydride. After completion of the reaction the mixture is concentrated to dryness, treated with 10 ml of water and extracted with methylene chloride. The extracts are dried and filtered, the filtrate is concentrated and the residue is purified on silica gel with methylene chloride/methanol (95:5). N-tert.Butyl-decahydro-2-[2(R)-hydroxy-4-phenyl-3(S)-phthalimidobutyl]-(4aS,8aS)-isoquinoline-3(S)-carboxamide is obtained.

1. customAfter completion of the reaction the mixture
2. concentrationis concentrated to dryness
3. additiontreated with 10 ml of water
4. extractionextracted with methylene chloride
5. customThe extracts are dried
6. filtrationfiltered
7. concentrationthe filtrate is concentrated
8. customthe residue is purified on silica gel with methylene chloride/methanol (95:5)