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Volumn 2, Issue 4, 2005, Pages 316-318

Stereoselective preparation 1-deoxy-homonojirimycin from a β-ketoester bearing sugar

Author keywords

hydroxyester; ketoester; 1 deoxy homnojirimycin; Polyhydroxylated piperidine; Xylofuranose

Indexed keywords


EID: 27644594401     PISSN: 15701786     EISSN: None     Source Type: Journal    
DOI: 10.2174/1570178054038876     Document Type: Review
Times cited : (9)

References (22)
  • 1
    • 0003891487 scopus 로고    scopus 로고
    • For some reviews, see: a, Chapleur, Y. Ed, Wiley-VCH; Weinheim
    • For some reviews, see: a) Tatsuta, K. In Carbohydrate mimics; Chapleur, Y. Ed.; Wiley-VCH; Weinheim, 1998; pp 283-305;
    • (1998) Carbohydrate mimics , pp. 283-305
    • Tatsuta, K.1
  • 21
    • 46149106723 scopus 로고    scopus 로고
    • Methyl-(3-O-tert-butyldimethylsilyl-6-deoxy-1,2-O- isopropylidene -α-L-ido-hepto-1,4-furan)-uronate(4, The catalyst was first prepared under argon according to the next procedure: To bis-(2-methylallyl, cycloocta-1,5-diene-ruthenium(II) complex (0.02 equiv, 1.6 mg) and (R)-2,2′-bis(diphenylphosphino)-1,1′- binaphtyl (0.02 equiv, 3.4 mg) in degazed acetone (0.3 ml) was added a methanolic solution of hydrogen bromide (0.15-0.18M, 0.04 equiv, After one hour of stirring, the solvant was evaporated. The β-keto ester 5 (100 mg, 0.3 mmol) in freshly distilled degazed MeOH (0.6 ml, was then cannulated to the catalyst. The reaction mixture was stirred 24 h at 40°C under hydrogen atmosphere. Evaporation of the solvant followed by a purification by flash chromatography (Et2O/pentane: 1/3) allowed pure 4 (100 mg, 99, e.d.>99, α]D 25=-18 (c 1.6, DCM, 1H NMR 2
    • 7Si: C 54.23, H 8.57; found: C 54.14, H 8.67.
  • 22
    • 46149090724 scopus 로고    scopus 로고
    • 1,5,6-Trideoxy-1,5-imino- D-gluco-heptitol (2, TBAF 1M in THF (1.1 ml) was added to a solution of 9 (329 mg, 0.53 mmol) in THF (2.3 ml, After 1 h of stirring, saturated NH4Cl was added and the mixture was extracted with Et2O. A purification by flash chromatography (AcOEt) led to the expected diol 3 (121 mg, 88, The azide 3 (121 mg, 0.46 mmol) in a solution of TFA in water (3/2, 5 ml) was stirred 2 h at 40°C. PtO2 (10.6 mg, 0.046 mmol) was then added and the reaction mixture was hydrogenolysed at room temperature one night. The catalyst was filtered over celite and washed with MeOH. After concentration, the crude product was dissolved in water, washed with DCM then concentrated to 200 mg of a dark oil. Purification over Amberlyst A-26 (OH, eluted with an aqueous solution of NH4OH 2.5, gave the expected piperidine 2 70 mg, 85% from 3, The optical rotation was measured on
    • 25= +30 (c 0.55, MeOH).


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.