- Synthesis of (2S*,4R*,5S*)-piperidinetricarboxylic acid, a non-proteinogenic amino acid isolated from clitocybe acromelalga
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(255*,4R*,5S*)-Piperidinetricarboxylic acid isolated from a poisonous mushroom Clitocybe acromelalga was synthesized along with its stereoisomers and their depolarizing activity was tested.
- Hashimoto, Kimiko,Higashibayashi, Shuhei,Shirahama, Haruhisa
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p. 581 - 588
(2007/10/03)
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- SYNTHESIS AND CONFIGURATION OF DIASTEREOMERIC 2,4-, 2,5-, AND 2,6-PIPERIDINEDICARBOXYLIC ACIDS AND THEIR DIMETHYL ESTERS
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The reduction in an acidic medium over a platinum catalysts of 2,4-, 2,5-, and 2,6-pyridinedicarboxylic acids gave cis-2,4-, -2,5-, and -2,6-piperidinedicarboxylic acids, heating of which in an alkaline medium led to thermodynamically equilibrium mixtures of diastereomers.Individual trans-2,5-piperidinecarboxylic acid was isolated.The configurations of the 2,4-, 2,5-, and 2,6-piperidinedicarboxylic acids and their methyl esters were established by means of the PMR spectra.
- Mastafanova, L. I.,Turchin, K. F.,Evstratova, M. I.,Sheinker, Yu. N.,Yakhontov, L. N.
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p. 305 - 309
(2007/10/02)
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