Results 51 to 60 of about 23,282 (131)

Application of the Ugi Reaction for the One-Pot Synthesis of Uracil Polyoxin C Analogues

, 2016
A simple, two-step synthesis of amide derivatives of uracil polyoxin C (UPOC) methyl ester using the Ugi reaction is described. The four components employed in the Ugi reaction are 2′,3′-isopropylidine-protected uridine-5′-aldehyde, 2,4 ...
Andrew Plant (2320891), Peter Thompson (165468), David M. Williams (16225)   +2 more
core   +1 more source

UEG Week 2025 Moderated Posters

United European Gastroenterology Journal, Volume 13, Issue S8, Page S189-S802, October 2025.
wiley   +1 more source

Synthesis of seven-membered nitrogen heterocycles through the Ugi multicomponent reaction

, 2017
This paper reviews all the syntheses of 7-membered nitrogen heterocycles that are based on the Ugi multicomponent reaction. Different systems may be obtained in a diversity-oriented manner employing three general strategies: i) intramolecular Ugi ...
LAMBRUSCHINI, CHIARA, BANFI, LUCA, RIVA, RENATA, BASSO, ANDREA, MONI, LISA   +4 more
core  

Insight into the mechanisms of the multicomponent Ugi and Ugi-Smiles reactions by ESI-MS(/MS)

, 2014
The mechanisms of the Ugi and Ugi–Smiles reactions were investigated by using finely selected reaction conditions that allowed all of the intermediates to be “fish-out” and characterized by ESI-MS/MS.
Gal, Jean François, IACOBUCCI, CLAUDIO, REALE, SAMANTHA, DE ANGELIS, Francesco   +3 more
core   +1 more source

UEG Week 2025 Poster Presentations

United European Gastroenterology Journal, Volume 13, Issue S8, Page S803-S1476, October 2025.
wiley   +1 more source

DFT Studies on the Stereoselective Three-Component Ugi Reaction

, 2019
Mechanism and stereochemistry of three component Ugi reaction (3C-Ugi) were studied theoretically based on DFT calculations. Structures of reagents, products, intermediates, and transition states were optimized at M062X/6-31+g(d,p) level of theory in gas
Nader Zabarjad Shiraz, Elaheh Sadat Sharifzadeh, Sharifzadeh, Elaheh Sadat, Shiraz, Nader Zabarjad   +3 more
core   +1 more source

Abstract

JPGN Reports, Volume 6, Issue S2, Page S1-S814, September 2025.
wiley   +1 more source

Synthesis of Multifunctional Polymers through the Ugi Reaction for Protein Conjugation

, 2016
The Ugi reaction has been utilized as a multicomponent click reaction to efficiently synthesize a series of multifunctional PEGylation agents, and those PEG derivatives were successfully conjugated on a protein surface to generate corresponding ...
Yuan Zhao (336512), Yen Wei (1396648), Lei Tao (422964), Bin Yang (103252), Shiqi Wang (163773), Changkui Fu (1483129), Yaling Zhang (1687540)   +6 more
core   +1 more source

Synthesis of multifunctional polymers through the ugi reaction for protein conjugation

, 2014
The Ugi reaction has been utilized as a multicomponent click reaction to efficiently synthesize a series of multifunctional PEGylation agents, and those PEG derivatives were successfully conjugated on a protein surface to generate corresponding ...
Zhang, Yaling, Yuan Zhao, Shiqi Wang, Bin Yang, Wang, Shiqi, Fu, Changkui, Yaling Zhang, Wei, Yen, Lei Tao, Yang, Bin, Changkui Fu, Tao, Lei, Zhao, Yuan, Yen Wei   +13 more
core   +1 more source

Rapid synthesis of cyclopeptide alkaloid-like para-cyclophanes by combined use of Ugi-4CR and intramolecular SNAr reaction

The title cyclophanes, such as I, were prepd. via a Ugi-4CR four component reaction and subsequent macrocyclization of the resulting amides using intramol. SNAr reactions.
Cristau, Pierre, Vors, Jean-Pierre, Zhu, Jieping   +2 more
core   +1 more source