Examples of 'pyrimidine ring' in a sentence
Meaning of "pyrimidine ring"
pyrimidine ring - a chemical structure found in nucleic acids like DNA and RNA
How to use "pyrimidine ring" in a sentence
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pyrimidine ring
Dihydropyrimidinase cleaves the pyrimidine ring to yield.
Preferred pyrimidine ring systems of formula IVb are shown below.
This provides a bicyclic ring system containing a pyrimidine ring.
This is due to the pyrimidine ring that both compounds contain.
Pyrimidine ring closure to the purine base followed by removal of the protecting groups.
The acylation and the formation of pyrimidine ring may occur continuously in one pot.
The pyrimidine ring is protonated on the ring nitrogen opposite the amino group.
Diaminopyrimidines are a class of organic chemical compounds that include two amine groups on a pyrimidine ring.
Examples of preferred pyrimidine ring systems of formula IIb are shown below.
This procedure can be adopted to prepare a variety of condensed tricyclic imidazolo pyrimidine ring systems.
Examples of preferred pyrimidine ring systems of formula IIa are shown below.
The above formula VI compounds are those having a pyrimidine ring.
Examples of preferred pyrimidine ring systems of formula IId are shown below.
Scheme II shows the appending of the second ring onto the pyrimidine ring.
An oxidation at position 3 of the pyrimidine ring is then carried out as previously.
See also
Some IdUrd was incorporated into DNA with the iodine remaining intact on the pyrimidine ring.
Compounds containing a pyrimidine ring ( whether or not hydrogenated ) or piperazine ring in the structure.
Pyrimidinediones are a class of chemical compounds characterized by a pyrimidine ring substituted with two carbonyl groups.
The pyrimidine ring was prepared as described by Burdeska, K. et al . Helv . Chim.
Preferably Het is pyrimidine ring.
Scheme 8 depicts the preparation of a compound having a cyclopropyl group at position 5 of the pyrimidine ring.
Examples of preferred pyrimidine ring systems of formula IIc '' are shown below.
A is more preferably a benzene ring, pyridine ring, pyrimidine ring or thiophene ring.
Said known pyrimidine derivatives may have different substitutions at position 8 of the pyrimidine ring.
Dihydropyrimidinase cleaves the pyrimidine ring to yield 5-fluoro-ureidopropionic acid FUPA.
In certain embodiments, Cy1 is an optionally substituted pyridine or pyrimidine ring.
Preferably, Y is not H, so position 5 of the pyrimidine ring is generally substituted.
A compound as described in claim 5 or a pharmaceutically acceptable salt thereof, wherein ring B is a pyrimidine ring.
The heterocyclic rings are more preferably pyridine ring, pyrimidine ring and thiophene ring.
The substituent W represents a carbon atom or a nitrogen atom, and forms a pyridine or pyrimidine ring.
Cyclization then leads to formation of the fused pyrimidine ring to afford zaleplon ( 6 ).
Step I introduces an alkoxy group onto the halogenated ( chloroinated ) pyrimidine ring.
For example, a 4-azido substituent may be cyclized on the pyrimidine ring to the 3 position.
A compound according to claim 4 wherein ring B is a pyrimidine ring.
The ring in formula ( I ) is a pyrimidine ring.
Furthermore, they may be unsubstituted at position 2 in the pyrimidine ring.
Me 3-BnO-Ph The above formulae IIa and IIb compounds are those having a pyrimidine ring.
The compound of claim 16, wherein A is a fused pyrimidine ring.
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Examples of using Pyrimidine
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Synthesis of pyrimidine nucleotides is a much simpler process
Dihydropyrimidinase cleaves the pyrimidine ring to yield
Pyrimidine organothiophosphate insecticide mite growth regulator
Examples of using Ring
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And place a ring upon her hand
Ring tones will not hold up in court
I had to go into the ring to finish it myself
