62561-75-5Relevant articles and documents
PRODUCTION METHOD FOR RADIOLABELED ARYL COMPOUND
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Paragraph 0208, (2020/12/10)
The invention relates to a method of producing the radiolabeled aryl compound (I) Ar—X, or a salt thereof, wherein X is 211At, 210At, 123I, 124I, 125I, or 131I. The method involves reacting the aryl boronic acid compound (II) Ar—Y, or a salt thereof, wherein Y is a borono group (—B(OH)2) or an ester group thereof, with a radionuclide selected from 211At, 210At, 123I, 124I, 125I and 131I, in the presence of an oxidizing agent selected from an alkali metal iodide, an alkali metal bromide, N-bromosuccinimide, N-chlorosuccinimide and hydrogen peroxide, in water.
PENTAFLUOROPHOSPHATE DERIVATIVE, ITS USES AND AN APPROPRIATE MANUFACTURING METHOD
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Page/Page column 12, (2019/04/05)
The invention relates to a pentafluorophosphate derivative according to general formula (I): or a pharmaceutically acceptable salt or solvate thereof. Thereby, R1 and R2 denote independently from each other H or F; R3 denotes H, an optionally substituted C1-C10 alkyl, an optionally substituted C3-C10 cycloalkyl, or an optionally substituted C6-C20 aryl, wherein a hydrocarbon chain of the alkyl, the cycloalkyl or the aryl can be interrupted by one or more oxygen, sulfur and/or nitrogen atoms; and M denotes any cation; with the proviso that at least one of R1 and R2 denotes F, if R3 denotes H. The invention further relates to uses of such a pentafluorophosphate derivative and to an appropriate manufacturing method.
Site-Selective Modification of α-Amino Acids and Oligopeptides via Native Amine-Directed γ-C(sp3)-H Arylation
Yuan, Feipeng,Hou, Zhen-Lin,Pramanick, Pranab K.,Yao, Bo
supporting information, p. 9381 - 9385 (2019/11/28)
Site-selective modification of chemically and biologically valuable α-amino acids and peptides is of great importance for biochemical study and pharmaceutical development. Few methods based on remote C(sp3)-H functionalization of aliphatic side-chains of peptides has been disclosed in recent years. In this report, we developed a novel approach for γ-C(sp3)-H and γ-/δ-C(sp2)-H arylation of α-amino acids with α-hydrogen by native amine-directed C-H functionalization and further realized the γ-C(sp3)-H arylation of N-terminally unprotected peptides.