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Volumn 121, Issue 48, 1999, Pages 11058-11062

Inactivation of the urdGT2 gene, which encodes a glycosyltransferase responsible for the C-glycosyltransfer of activated D-olivose, leads to formation of the novel urdamycins I, J, and K

Author keywords

[No Author keywords available]

Indexed keywords

ANTINEOPLASTIC AGENT; GLYCOSYLTRANSFERASE; UNCLASSIFIED DRUG; URDAMYCIN I; URDAMYCIN J; URDAMYCIN K;

EID: 0033537033     PISSN: 00027863     EISSN: None     Source Type: Journal    
DOI: 10.1021/ja9915347     Document Type: Article
Times cited : (66)

References (35)
  • 4
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    • Chemically, the term "aglycon" is usually used to refer to the product obtained from acidic hydrolysis. This includes here the C-glycosidic moiety
    • Chemically, the term "aglycon" is usually used to refer to the product obtained from acidic hydrolysis. This includes here the C-glycosidic moiety.
  • 8
    • 33847513370 scopus 로고    scopus 로고
    • 7a
    • 7a
  • 17
    • 33646951679 scopus 로고    scopus 로고
    • note
    • 18
  • 21
    • 33646958676 scopus 로고    scopus 로고
    • note
    • Both compounds showed a strong positive NOE effect between 12a-OH and 4a-OH and a weaker one between 4a-OH and 12b-OH. 11 also shows an NOE effect between 12a-OH and 6a-H. The two coupling constants (5, 2 Hz) of 6a-H indicate its equatorial position. The sharpness of the tertiary 12a- and 12b-OH signals and the 2D-NOE spectra indicatees either a water molecule fixed between 12a-OH and 12b-OH through hydrogen bonds or a rapid exchange of the OH groups with residual water. The assumed conformations, i.e., ring A of 11 in twist boat, of 12 in half chair, and ring B in both compounds in chair conformation, are based on MM3* force field calculations.
  • 24
    • 33847506630 scopus 로고    scopus 로고
    • Other observed upfield shifts: C-1 (Δδ 0.02 ppm); upfield shifts at C-7 and C-8 were not observable, due to the broadness of the signals or O-exchange with water, respectively
    • Other observed upfield shifts: C-1 (Δδ 0.02 ppm); upfield shifts at C-7 and C-8 were not observable, due to the broadness of the signals or O-exchange with water, respectively.
  • 26
    • 33646963271 scopus 로고    scopus 로고
    • diploma thesis, University of Göttingen, Germany
    • (b) Weissbach, U., diploma thesis, University of Göttingen, Germany, 1997.
    • (1997)
    • Weissbach, U.1
  • 34
    • 33847524605 scopus 로고    scopus 로고
    • National Cancer Institute, Bethesda, MD, personal communication. Here, the in vitro antitumor screen consisting of 60 human tumor cell lines was used. For further details
    • Sausville, E. A. National Cancer Institute, Bethesda, MD, personal communication. Here, the in vitro antitumor screen consisting of 60 human tumor cell lines was used. For further details, see http://dtp.nci.nih.gov.
    • Sausville, E.A.1
  • 35
    • 84953459580 scopus 로고
    • Synthesized from 2-methylhydroquinone and maleic anhydride: Wallenfels, K. Ber. Dtsch. Chem. Ges. 1942, 75, 785.
    • (1942) Ber. Dtsch. Chem. Ges. , vol.75 , pp. 785
    • Wallenfels, K.1


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.