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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Syntheses of some nitrogen-bridged (2.2) cyclophanes. / Chemistry of heterocyclic compounds

January 1980 (has links)
by Chan Shau-lung. / Thesis (M.Phil.)--Chinese University of Hong Kong, 1980. / Bibliography: leaves 54-56.
2

Synthesis of 2-Carbamoyl-4-Oxo-1,5-Diazabicyclo [3.2.1] Octane Derivatives as a Possible Inhibitors of Serine β-Lactamases

Wang, Haiyu, Shilabin, Abbas 05 April 2018 (has links)
Antibiotic resistance is becoming ever more severe due in part to the increasing use of antibiotic drugs. One significant contributor to this problem is the production of β-lactamase enzymes that provide resistance to common β-lactam antibiotics. The scope of this research is to synthesize and study the β-lactamase inhibitors of 2-carbamoyl-4-oxo-1,5-diazabicyclo [3.2.1] octane derivatives. Currently the research process is in the beginning stages of synthesizing three compounds: (R)-hexahydro-6-oxopyrimidine-4-carboxylic acid (1a), hexahydro-2,2-dimethyl-6-oxopyrimidine-4-carboxylic acid (1b) and hexahydro-6-oxo-2-phenylpyrimidine-4-carboxylic acid (1c). The future steps are to synthesize (R) -3-(methoxycarbonyl)-hexahydro-6-oxopyrimidine-4-carboxylic acid (2a), (R)-dimethyl tetrahydro-4-oxopyrimidine-1,6(2H)-dicarboxylate (3a) and (R)-methyl hexahydro-6-oxopyrimidine-4-carboxylate (4a). All the compounds will be evaluated for the inhibitory activities against pure TEM-1 and P99 β-lactamase.
3

Studies on the Khand cyclisation reaction

McLaughlin, Mark January 2001 (has links)
No description available.
4

An investigation of the activity and activation of clayzic and clayfec as Friedel-Crafts catalysts

Cullen, Stephen Ronald January 1994 (has links)
No description available.
5

The enzymatic resolution of racemic enol acetates derived from prochiral oxabicyclic ketones

Swain, Simon A. January 2000 (has links)
No description available.
6

Aspects of free radical cyclisations

Caddick, Stephen January 1989 (has links)
No description available.
7

Heterocyclic ring synthesis using alkylidene carbene insertion reactions

Bourghida, Ahmed January 2001 (has links)
No description available.
8

Studies in medium ring synthesis

Bradley, Lisa L. January 1990 (has links)
No description available.
9

Some mechanistic and synthetic aspects of carbene chemistry

Jeffries, I. January 1987 (has links)
No description available.
10

Additions to chiral #alpha#, #beta#-epoxyimines

Beresford, Kenneth James Mcrae January 1992 (has links)
No description available.

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