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Volumn 65, Issue 34, 2009, Pages 7001-7015

Stereoselective synthesis of CD-ring precursors of vitamin D derivatives

Author keywords

[No Author keywords available]

Indexed keywords

2 METHYLOXAZABOROLIDIN DERIVATIVE; ACETYLMETHYLDIVINYLCYCLOPENTANE; BORANE DERIVATIVE; BORON; BORON DERIVATIVE; CYCLOPENTANE DERIVATIVE; EPOXYKETONE; HYDRINDANE DERIVATIVE; IMINE; INDAN DERIVATIVE; KETONE; O ETHYL (S OCTAHYDRO 7A METHYL 7 OXO 1 VINYL 1H INDEN 4 YL)CARBONODITHIOATE; TETRAHYDROFURAN DERIVATIVE; UNCLASSIFIED DRUG; VITAMIN D DERIVATIVE;

EID: 67650538334     PISSN: 00404020     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.tet.2009.06.052     Document Type: Article
Times cited : (23)

References (103)
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    • Feldman D., Glorieux F.H., and Pike J.W. (Eds), Academic, New York, NY
    • In: Feldman D., Glorieux F.H., and Pike J.W. (Eds). Vitamin D (1997), Academic, New York, NY
    • (1997) Vitamin D
  • 4
    • 67650516729 scopus 로고    scopus 로고
    • For reviews on this topic, see
    • For reviews on this topic, see:
  • 12
    • 67650555356 scopus 로고    scopus 로고
    • note
    • Steroidal numbering is used.
  • 30
    • 67650513262 scopus 로고    scopus 로고
    • trans-Hydrindanone precursors of CD-ring system of vitamin D have previously been obtained from meso-3, for premilary communications see
    • trans-Hydrindanone precursors of CD-ring system of vitamin D have previously been obtained from meso-3, for premilary communications see:
  • 33
    • 67650543818 scopus 로고    scopus 로고
    • For reviews, see
    • For reviews, see:
  • 37
    • 0141518530 scopus 로고    scopus 로고
    • 12 position increased to 4.4 times the affinity of the related calcitriol analogs for the vitamin D receptor (VDR).
    • 12 position increased to 4.4 times the affinity of the related calcitriol analogs for the vitamin D receptor (VDR). Gonzalès-Avión X.C., and Mouriño A. Org. Lett. 5 (2003) 2291-2293
    • (2003) Org. Lett. , vol.5 , pp. 2291-2293
    • Gonzalès-Avión, X.C.1    Mouriño, A.2
  • 38
    • 67650561089 scopus 로고    scopus 로고
    • note
    • First, we considered a ketone-directed epoxidation of anti meso-3. Attempts performed with meta-chloroperbenzoic acid at rt led to a 50:50 mixture of two monoepoxides diastereoisomers, resulting from a total lack of facial selectivity.
  • 44
    • 67650533744 scopus 로고    scopus 로고
    • note
    • Separation of both diastereoisomers at the previous stage should provided a better er. Unfortunatly, attemps to remove the minor stereoisomer by flash chromatography were unfruitful. Efforts to solve this problem are still under studies.
  • 45
    • 67650534913 scopus 로고    scopus 로고
    • note
    • The enatiomeric ratio (er) was calculated from the chiral GC values of (+)-4, 8a and 8 as detailed in experimental section.
  • 55
    • 67650516728 scopus 로고    scopus 로고
    • For reviews on the chemistry of xanthates, see
    • For reviews on the chemistry of xanthates, see:
  • 60
    • 0003123493 scopus 로고    scopus 로고
    • Renaud P., and Sibi M. (Eds), Wiley-VCH GmbH, Weinheim, Germany
    • Zard S.Z. In: Renaud P., and Sibi M. (Eds). Radical in Organic Synthesis. 1st ed. (2001), Wiley-VCH GmbH, Weinheim, Germany 90
    • (2001) Radical in Organic Synthesis. 1st ed. , pp. 90
    • Zard, S.Z.1
  • 61
    • 67650540729 scopus 로고    scopus 로고
    • For examples of cyclization of an α-carbonyl radical generated from the corresponding xanthate, see
    • For examples of cyclization of an α-carbonyl radical generated from the corresponding xanthate, see:
  • 65
    • 67650543817 scopus 로고    scopus 로고
    • Ester and malonate xanthate derivatives have been reported to be synthetized by reaction of their respective enolates with diethyl bisdithiocarbonate in 50-58% yield
    • Ester and malonate xanthate derivatives have been reported to be synthetized by reaction of their respective enolates with diethyl bisdithiocarbonate in 50-58% yield.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.