Доброго всем времени суток. Помогите пожалуйста со следующими статьями:
1. The Crystal Structure of D-Ribose - At Last.
Dubravka Sisak, Lynne B. McCusker, Dr et al.
Published Online: 12 May 2010
- DOI:
http://dx.doi.org/10.1002/anie.201001266
2. Asymmetric Synthesis of 2-Alkyl-Substituted 2,5-Dihydropyrroles from Optically Active Aza-Baylis−Hillman Adducts. Formal Synthesis of (−)-Trachelanthamidine.
Shingo Ishikawa, Fumiaki Noguchi and Akio Kamimura.
J. Org. Chem., 2010, 75 (11), pp 3578–3586.
- DOI:
http://dx.doi.org/10.1021/jo100315j
3. Tandem Intramolecular Photocycloaddition−Retro-Mannich Fragmentation as a Route to Spiro[pyrrolidine-3,3′-oxindoles]. Total Synthesis of (±)-Coerulescine, (±)-Horsfiline, (±)-Elacomine, and (±)-6-Deoxyelacomine.
James D. White, Yang Li and David C. Ihle
J. Org. Chem., 2010, 75 (11), pp 3569–3577.
- DOI:
http://dx.doi.org/10.1021/jo1002714
4. On the Mechanism of Ylide-Mediated Cyclopropanations: Evidence for a Proton-Transfer Step and Its Effect on Stereoselectivity.
Samantha L. Riches, Chandreyee Saha et al.
J. Am. Chem. Soc., 2010, 132 (22), pp 7626–7630.
- DOI:
http://dx.doi.org/10.1021/ja910631u
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