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By John S. Davies

ISBN-10: 0854042474

ISBN-13: 9780854042470

This product isn't really to be had individually, it is just bought as a part of a collection. There are 750 items within the set and those are all offered as one entity. summary: This product isn't really on hand individually, it's only offered as a part of a collection. There are 750 items within the set and those are all bought as one entity

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Additional info for Amino Acids, Peptides and Proteins (SPR Amino Acids, Peptides, and Proteins (RSC)) (Vol 35)

Example text

Four stereoisomers of 3,4-dihydroxyglutamic acid have been formed250 as a result of a stereoselective cyanation of an N-acyliminium intermediate derived from L- or D-tartaric acid. (2S)-2-Hydroxymethylglutamic acid (HMG), a potent agonist of metebotropic glutamate receptor mGlu R3 has been obtained251 from S-pyroglutaminol, via a bicyclic siloxypyrrole. Another route to HMG252 involved starting from D-serine, followed by a tandem Michael addition, a ring-closure protocol, followed by a stereoselective alkylation reaction from the convex face of the bi-cycle.

2S, 3S)-3-Hydroxyleucine was the model compound synthesised249 to test out a stereodivergent approach starting from a symmetrical alk-2-yne-l, 4-diol and using a Pd(0)-catalysed process to select the stereochemistry of the a-carbon in the amino acid produced. Four stereoisomers of 3,4-dihydroxyglutamic acid have been formed250 as a result of a stereoselective cyanation of an N-acyliminium intermediate derived from L- or D-tartaric acid. (2S)-2-Hydroxymethylglutamic acid (HMG), a potent agonist of metebotropic glutamate receptor mGlu R3 has been obtained251 from S-pyroglutaminol, via a bicyclic siloxypyrrole.

357 Arylglycines, as components of a number of natural products, have found popularity over recent years. A ‘one-pot’ novel procedure358 for their synthesis involved treatment of the side chain OH group of serine with (diacetoxyiodo)benzene and iodine, with the resulting radical being oxidised by a cationic glycine equivalent which can be trapped by nucleophiles (aryl and a number of other types). N, N 0 -Di-Boc-protected benzylamines have been shown to undergo359 1,2-Boc migration on treatment with KDA/ButOLi to give N-Boc-phenylglycine But esters.

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Amino Acids, Peptides and Proteins (SPR Amino Acids, Peptides, and Proteins (RSC)) (Vol 35) by John S. Davies


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