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Volumn 15, Issue 1, 2007, Pages 50-62

Solid-phase synthesis of a combinatorial library of dihydroceramide analogues and its activity in human alveolar epithelial cells

Author keywords

Analogues; Apoptosis; Ceramide; Combinatorial; COPD; Dihydroceramide; Solid phase; Sphingolipid

Indexed keywords

CERAMIDE DERIVATIVE; DIHYDROCERAMIDE DERIVATIVE; UNCLASSIFIED DRUG;

EID: 33750942863     PISSN: 09680896     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.bmc.2006.10.024     Document Type: Article
Times cited : (15)

References (47)
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  • 13
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    • For a related example of a solid-phase synthesis of a Cer library, see:
    • For a related example of a solid-phase synthesis of a Cer library, see:. Park J., Li Q., Chang Y.T., and Kim T.S. Bioorg. Med. Chem. 13 (2005) 2589-2595
    • (2005) Bioorg. Med. Chem. , vol.13 , pp. 2589-2595
    • Park, J.1    Li, Q.2    Chang, Y.T.3    Kim, T.S.4
  • 20
    • 0030819811 scopus 로고    scopus 로고
    • 2/EtOH), as described in: Wallace, O. B. Tetrahedron Lett. 1997, 38, 4939-4942. (see also Experimental).
  • 21
    • 33750941460 scopus 로고    scopus 로고
    • note
    • MOE (Molecular Operating Environment); Chemical Computer Group Inc: 1010 Sherbrroke West. Suite 910, Montreal, H3A 2R7, 2004.03 Release.
  • 23
    • 33750934829 scopus 로고    scopus 로고
    • note
    • Retrospectively, the diversity of this smaller full-array was assessed in the new accessible chemical space resulting from the combination of the modified reactant lists: 12 Grignard reagents (allylmagnesium bromide not included) and 22 acyl chlorides (benzoyl chloride instead of trifluoroacetyl chloride). This virtual library of 264 compounds (12 × 22) was characterized with the same set of descriptors (see text) and subsequently processed by PCA. As stated above, diversity was measured by cell-based methods in terms of both space and population coverage. In order to prevent cluster artifacts in the comparison, space was again partitioned in 36 clusters using the HRC-complete method. For this retrospective evaluation of the synthesized combinatorial library, we took as reference the best simulated annealing optimized 5 × 6 full-array selection carried out in the space defined by the 264-membered virtual library. Hence, the synthesized subset represents up to 60% of population coverage (44% space coverage), compared to the maximum full-array optimal value found of 71% (67% space). We finally performed a second PRALINS run to find how to complement, when needed, our synthesized combinatorial library in order to reach a degree of coverage closer to the maximum value. Thus, the optimal 6 × 6 sub-library forcing the selection of the 5 × 6 synthesized subset is found to include pentylmagnesium bromide, now yielding 71% of the population coverage (53% space).
  • 25
    • 33750936994 scopus 로고    scopus 로고
    • note
    • 2 = (1:1, isocratic), flow rate: 1 mL/min; erythro: 42.3 min; threo: 45.1 min.
  • 30
    • 33750935183 scopus 로고    scopus 로고
    • note
    • Reactions were monitored by cleavage of the resin (see Ref. 20) and HPLC or HPLC-MS analysis. Reaction yields were estimated on the basis of the loading of the starting resins (see Experimental for details).
  • 32
    • 33750954589 scopus 로고    scopus 로고
    • note
    • The analysis was complicated by the fact that two different sets of N,O(1) and N,O(3)-diacylated adducts were identified in the crude mixture. Acylation at C1(OH) can be interpreted as a result of a O-acyl migration in the course of the cleavage step of the initially formed N,O(3)-diacylated adduct.
  • 34
    • 33750942914 scopus 로고    scopus 로고
    • Unpublished results from our laboratory.
  • 37
    • 33750956279 scopus 로고    scopus 로고
    • note
    • Calculated using the CLogP algorithm incorporated in ChemDraw Ultra (9.0.1), licensed from BioByte Corp (http://www.biobyte.com).
  • 38
    • 33750964759 scopus 로고    scopus 로고
    • note
    • 1 group of the sphingoid base (see Fig. 2).


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.