1859-51-4Relevant academic research and scientific papers
Factors affecting the efficiency and stereoselectivity of α-amino acid synthesis by the Petasis reaction
Southwood, Timothy J.,Curry, Merril C.,Hutton, Craig A.
, p. 236 - 242 (2006)
The use of chiral secondary amines containing only one branched substituent has been shown to give optimal yields and stereoselectivities in the preparation of α-amino acids using the Petasis reaction. While the use of chiral primary amines generally give
Novel trifluoromethyl sydnone derivatives: Design, synthesis and fungicidal activity
Du, Shaoqing,Hu, Xueping,Shao, Xusheng,Qian, Xuhong
supporting information, (2021/05/31)
Crop pathogens reduce the yield and quality of agricultural production. The development of new fungicides will help to sustain this protection and overcome fungicide resistance. Sydnone is a kind of mesoionic, which has a wide range of biological activiti
ALKALOID AMINOESTER DERIVATIVES AND MEDICINAL COMPOSITION THEREOF
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Page/Page column 46, (2012/01/13)
The present invention relates to alkaloid aminoester derivatives acting as muscarinic receptor antagonists, processes for their preparation, compositions comprising them and therapeutic uses thereof.
ALKALOID AMINOESTER DERIVATIVES AND MEDICINAL COMPOSITION THEREOF
-
, (2012/01/12)
The present invention relates to alkaloid aminoester compounds which act as muscarinic receptor antagonists, processes for the preparation of such a compound, compositions which contain such a compound, and therapeutic uses of such a compound.
ALKALOID AMINOESTER DERIVATIVES AND MEDICINAL COMPOSITION THEREOF
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Page/Page column 66-67, (2010/07/09)
The present invention relates to alkaloid aminoester derivatives acting as muscarinic receptor antagonists, to methods of preparing such derivatives, to compositions comprising them and therapeutic use thereof.
A facile synthesis of substituted phenylglycines
Davies, Antony J.,Ashwood, Michael S.,Cottrell, Ian F.
, p. 1095 - 1102 (2007/10/03)
A convenient scaleable process for the preparation of substituted phenylglycines 2 by a modified Strecker reaction is described. Bisulfite- mediated addition of benzylamine and cyanide anion to substituted benzaldehydes 3 gave the aminonitriles 4 which were hydrolysed in two steps to the N-protected amino acid 1. Debenzylation using catalytic transfer hydrogenation gave the title compounds in good yield.
Phosphatase inhibitors. III. Benzylaminophosphonic acids as potent inhibitors of human prostatic acid phosphatase
Beers, Scott A.,Schwender, Charles F.,Loughney, Deborah A.,Malloy, Elizabeth,Demarest, Keith,Jordan, Jerold
, p. 1693 - 1701 (2007/10/03)
Further investigation of the structural requirements of a series of benzylphosphonic acid inhibitors of human prostatic acid phosphatase has led to the highly potent series of α-aminobenzylphosphonic acids. The α-benzylaminobenzylphosphonic acid, with an IC50 = 4 nM, exhibited a 3500-fold improvement in potency over the carbon analogue, α-phenylethyl. The enhanced potency may be due to a combination of four favorable interactions including those with the phosphate binding region, the presence the hydrophobic moieties of the benzylamino and phenylphosphonic acid, and a rigid conformer produced by an internal salt bridge between the phosphonate and the α-amino group. Replacement of the phosphonic acid moiety with a phosphinic or carboxylic acid as well as deletion of the benzyl substitution on the α-amino group led to great reductions in potency.
Reaction of Sydnones with Oxygen
Nakajima, Masayuki,Anselme, Jean-Pierre
, p. 1444 - 1448 (2007/10/02)
The reaction of 3-benzyl- and 3-(p-chlorobenzyl)-4-phenylsydnones (1a and 1b) and of 3-benzylsydnone (1c) with oxygen at room temperature in the dark is described.Possible rationalizations for the formation of the products obtained are suggested.
