1164-16-5Relevant articles and documents
Synthesis of 6-Dimethylamino-9-[3'-(O-Methyl) (2S)-[UL-14C]Tyrosinylamino)-3'-Deoxy-β-D- ribofuranosyl] purine
Mehrotra, Amit P.,Ryan, Martin D.,Gani, David
, p. 623 - 634 (2000)
In order to investigate and further refine the mechanism of the unique cleavage activity of the 18 amino acid 2A region of the foot-and-mouth-disease virus (FMDV), the synthesis of 14C-labelled puromycin is required. Puromycin is an inhibitor of protein synthesis and is an analogue of the terminal aminoacyl-adenosine portion of aminoacyl-tRNA. A short and expedient four step synthesis of 6-dimethylamino-9-[3'-(O-methyl) (2S)-[UL-14C]tyrosinylamino)-3'-deoxy-β-D-ribofuranos purine (14C-labelled puromycin) starting from (2S)-[UL-14C]-tyrosine is therefore described.
Synthesis of Water-Soluble Chiral DOTA Lanthanide Complexes with Predominantly Twisted Square Antiprism Isomers and Circularly Polarized Luminescence
Dai, Lixiong,Zhang, Junhui,Chen, Yuqing,Mackenzie, Lewis E.,Pal, Robert,Law, Ga-Lai
supporting information, p. 12506 - 12510 (2019/10/02)
One-step cyclization of a tetraazamacrocycle 5 with 70% yield in a 25-g scale was performed. Its chiral DOTA derivatives, L4, has ?93% of TSAP coordination isomer in its Eu(III) and Yb(III) complexes in aqueous solution. [GdL4]5- exhibits a high relaxivity, making it a promising and efficient MRI contrast agent. High luminescence dissymmetry factor (glum) values of 0.285 (ΔJ = 1) for [TbL3]- and 0.241 (ΔJ = 1) for [TbL4]5- in buffer solutions were recorded.
CHIRAL CYCLEN COMPOUNDS AND THEIR USES
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Paragraph 0091; 0193, (2018/04/13)
The present invention relates to the preparation of a series of chiral DOTA, D03A, D02A, DO1A, cyclen and their metal complexes, which display properties superior to those of previous DOTA- based compounds, and hence are potentially valuable as a platform for diagnostic applications. The chiral DOTAs reveal a high abundance of twisted square antiprism (TSA) geometry favoring them to be used as potential MRI contrast agents, whereas their rapid labelling properties at mild conditions make them excellent candidates for use as radiometal chelators.
