13139-17-8Relevant articles and documents
A large scale synthesis of mono- and di-urethane derivatives of lysine
Wiejak, Stanislaw,Masiukiewicz, Elzbieta,Rzeszotarska, Barbara
, p. 1489 - 1490 (1999)
In the search for a practical route to lysine diurethane derivatives useful for peptide synthesis, we elaborated the synthesis of N(ε)-tert- butoxycarbonyl-L-lysine copper(II) complex (1). This served as substrate for obtaining N(ε)-tert-butoxycarbonyl-L-lysine (2), N(α)-benzyloxycarbonyl- N(ε)-tert-butoxycarbonyl-L-lysine dicyclohexylamine salt (3) and N(α)-(9- fluorenyl)methoxycarbonyl-N(ε)-tert-butoxycarbonyl-L-lysine (4).
A Universal Labeling Strategy for Nucleic Acids in Expansion Microscopy
Hofkens, Johan,Leen, Volker,Rohand, Taoufik,Vandereyken, Katy,Vanheusden, Marisa,Voet, Thierry,Wen, Gang
supporting information, p. 13782 - 13789 (2021/09/11)
Expansion microscopy (ExM) enables the nanoscale imaging of ribonucleic acids (RNAs) on a conventional fluorescence microscope, providing information on the intricate patterns of gene expression at (sub)cellular resolution and within spatial context. To extend the use of such strategies, we examined a series of multivalent reagents that allow the labeling and grafting of deoxyribonucleic acid (DNA) oligonucleotide probes in a unified approach. We show that the reagents are directly compatible with third-generation in situ hybridization chain reaction RNA FISH (fluorescence in situ hybridization) techniques while displaying complete retention of the targeted transcripts. Furthermore, we validate and demonstrate that our labeling method is compatible with multicolor staining. Through oligonucleotide-conjugated antibodies, we demonstrate excellent performance in ×4 ExM and ×10 ExM, achieving a resolution of ～50 nm in ×10 ExM for both pre- and postexpansion labeling strategies. Our results indicate that our multivalent molecules enable the rapid functionalization of DNA oligonucleotides for ExM.
Synthesis method of N-(benzyloxycarbonyloxy)succinimide
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Paragraph 0005; 0008; 0010-0012; 0013; 0014; 0016; 0017, (2020/05/05)
The invention relates to a synthesis method of N-(benzyloxycarbonyloxy)succinimide; the invention mainly solves the technical problems of high raw material cost, overhigh reaction rate, severe heat release, high possibility of generating impurities, high product loss during refining and the like in an existing synthesis method. The synthesis method comprises the following steps: dissociating hydroxylamine hydrochloride in an aqueous solution by using NaOH, and carrying out a reaction with succinic anhydride to generate HOSu; carrying out a reaction of HOSu with Cbz-Cl in a mixed solution of water and ethyl acetate to generate a target compound Cbz-OSu. Cbz-OSu is commonly used as a polypeptide commonly used reagent, and a Z-amino protection reagent is selectively introduced in synthesis ofamino acids and aminoglycoside antibiotics.
Scalable synthesis of Nα-benzyloxycarbonyl-L-ornithine and of Nα-(9-fluorenylmethoxy)carbonyl-L-ornithine
Masiukiewicz, Elzbieta,Wiejak, Stanislaw,Rzeszotarska, Barbara
, p. 531 - 537 (2007/10/03)
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