102507-13-1Relevant articles and documents
Total synthesis of nannocystin Ax
Zhang, Yan-Hui,Liu, Rong,Liu, Bo
, p. 5549 - 5552 (2017)
A concise total synthesis of nannocystin Ax, a natural depsipeptide recently isolated from myxobacteria, has been accomplished. By following a convergent strategy, the target molecule was assembled from three fragments. Each fragment can be synthesized expeditiously from readily achievable compounds. The key elements in this total synthesis feature Kobayashi's remote asymmetric induction with vinylketene silyl N,O-acetal, Roush's asymmetric crotylboration of aldehyde, Mitsunobu's esterification and macrocyclization via Stille cross-coupling.
Gold-Catalyzed Amide/Carbamate-Linked N, O-Acetal Formation with Bulky Amides and Alcohols
Ohsawa, Kosuke,Ochiai, Shota,Kubota, Junya,Doi, Takayuki
, p. 1281 - 1291 (2021)
A gold-catalyzed N,O-acetal formation was established to construct an amide/carbamate-linked N,O-acetal substructure with bulky alcohols. The acyliminium cation species generated from o-alkynylbenzoic acid ester in the presence of a gold catalyst is highly reactive and underwent nucleophilic attack of various bulky alcohols and phenols at room temperature under neutral conditions, leading to the corresponding N,O-acetals in yields of 34-89% with good functional group tolerance.
MONOBACTAM COMPOUNDS AND USE THEREFOR
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, (2022/01/12)
Monobactam compounds and a use therefor. Specifically provided are chemical compounds represented by formula (I) or isomers, pharmaceutically acceptable salts, solvates, crystals, or prodrugs thereof, preparation methods therefor, pharmaceutical compositions containing said compounds, and a use of said compounds or compositions in treating bacterial infection. The present compounds feature excellent antibacterial activity, and have great hopes of becoming a therapeutic agent for bacterial infection.
APPLICATION OF MONOCYCLIC BETA-LACTAM COMPOUND IN PHARMACY
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, (2021/11/04)
An application of a compound represented by formula (I) and pharmaceutically acceptable salts thereof in preparation of a drug for treating pneumonia.