861658-15-3Relevant articles and documents
[1,2] Boc migration during pyroglutamate alkylations
Dieltiens, Nicolai,Stevens, Christian V.,Masschelein, Kurt G. R.,Rammeloo, Thomas
, p. 6749 - 6756 (2005)
Treatment of N-Boc protected pyroglutamates with strong bases lead to a Boc migration from the N-atom to the C2 position when no or poor electrophiles are being used.
L-glutamic acid derivative and synthesis method and application thereof
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Paragraph 0044; 0048-0052; 0056; 00060-0064; 0066; 0070-0074, (2020/11/01)
The invention belongs to the technical field of synthesis of medical and traditional Chinese medicine intermediates, and discloses an L-glutamic acid derivative and a synthesis method and applicationthereof. All the steps in the synthesis method are simple and in order , the obtained L-dimethyl glutamate hydrochloride oily matter is directly put into the next step of reaction through a one-pot method, L-dimethyl glutamate hydrochloride solids do not need to be obtained, the use of all the raw materials can be effectively reduced, and the cost is reduced; ethyl acetate is selected as a reaction solvent and can be effectively recycled, the utilization rate of the ethyl acetate is remarkably increased, and pollution to the environment is reduced; a final product is obtained in a crystallization manner so that the convenience and the storage convenience during transportation are improved, and the quality and the yield of the product can be further improved. The technical scheme of the synthesis method is complete and simple, the produced product is high in crystallization yield and better in quality, the overall yield of the product is conveniently, rapidly, scientifically and effectively increased to 85% or above, and raw materials are provided for research and development of new drugs.
Zelkovamycin is an OXPHOS Inhibitory Member of the Argyrin Natural Product Family
Krahn, Daniel,Heilmann, Geronimo,Vogel, Felix C. E.,Papadopoulos, Chrisovalantis,Zweerink, Susanne,Kaschani, Farnusch,Meyer, Hemmo,Roesch, Alexander,Kaiser, Markus
supporting information, p. 8524 - 8531 (2020/07/02)
Natural products (NPs) are an important inspirational source for developing drugs and chemical probes. In 1999, the group of ōmura reported the constitutional elucidation of zelkovamycin. Although largely unrecognized so far, this NP displays structural s