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2. Locked conformations for proline pyrrolidine ring: synthesis and conformational analysis of cis- and trans-4-tert-butylprolines. Koskinen AM; Helaja J; Kumpulainen ET; Koivisto J; Mansikkamäki H; Rissanen K J Org Chem; 2005 Aug; 70(16):6447-53. PubMed ID: 16050708 [TBL] [Abstract][Full Text] [Related]
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