Examples of 'carboxyl protecting' in a sentence
Meaning of "carboxyl protecting"
Carboxyl protecting: Carboxyl protecting refers to a chemical process used to selectively protect carboxylic acids in the presence of other functional groups during a chemical reaction
How to use "carboxyl protecting" in a sentence
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carboxyl protecting
An aralkyl carboxyl protecting group may conveniently be removed by hydrogenation.
The protecting group p may be any of the readily removable carboxyl protecting groups.
Cleavage of carboxyl protecting groups can be accomplished by alkaline saponification.
Hydroxyl and carboxyl groups may be protected using any conventional hydroxyl or carboxyl protecting group.
Other commonly used carboxyl protecting groups are also suitable.
Representative examples of protecting groups are amino, hydroxyl, carboxyl protecting groups.
Suitable carboxyl protecting groups include ethyl and benzyl esters.
Octane, but can be any carboxyl protecting group.
Hydroxyl and carboxyl protecting groups are typically removed chemically by acid or base hydrolysis.
Is a hydrogen atom or a carboxyl protecting group ;.
Removal of the carboxyl protecting group may be performed using methods known in the art.
At the 4-position the carboxylic acid substituent may be modified with various carboxyl protecting groups.
Rp represents a carboxyl protecting group and is the same as those described above.
A process according to Claim 8 wherein said carboxyl protecting group is ethyl.
The carboxyl protecting group PNB is illustrated below.
See also
Many other suitable hydroxyl and carboxyl protecting groups are known in the art.
The P2 carboxyl protecting group is introduced in conventional fashion.
In certain embodiments, the carboxyl protecting groups are methyl.
R * is a carboxyl protecting group such as alkyl or arylalkyl.
In certain embodiments, the carboxyl protecting group is methyl.
Is H or a carboxyl protecting group ; the configuration about the carbon atom designated * is L.
Each R ' is an independently selected carboxyl protecting group.
A subset of the carboxyl protecting groups is comprised of TBDMS and PNB.
A process as claimed in any one of claims l to 6, wherein R ⁴ is a carboxyl protecting group.
It is during this step that the carboxyl protecting group designated R is established.
Carboxyl protecting groups include amides, esters, and ether-forming protecting groups can also be used.
Removal of the carboxyl protecting group ;.
The carboxyl protecting group ( PG ' ) in the resulting coupling product 8 is then removed.
Wherein, R is hydrogen or a carboxyl protecting group ; and.
Preferred carboxyl protecting groups are p-nitrobenzyl and allyl.
In certain embodiments, R4 is a carboxyl protecting group.
A preferred carboxyl protecting group is p-nitrobenzyl.
Decomposing an ester of formula, in which R20 is a carboxyl protecting group.
Thus, an alkyl carboxyl protecting group may be removed by hydrolysis.
And R4 are each independently hydrogen or a carboxyl protecting group ; and.
In addition, an benzyl carboxyl protecting group may conveniently be removed by hydrogenation.
A process according to Claim 7 wherein R1 is a carboxyl protecting group.
Y is hydrogen or a carboxyl protecting group ; and Q has one of the following meanings,.
Typical carboxyl protecting groups may include methyl, ethyl, and tert-butyl.
Protecting 4-hydroxyphthalic acid with a carboxyl protecting group to form a carboxyl protected 4-hydroxyphthalic acid ;.
Removal of the carboxyl protecting group of B3 by conventional methods then gives the final compound B4.
P ** represents a carboxyl protecting group.
Removal of the carboxyl protecting groups of F4 by standard methods provides the final compound F5.
In certain embodiments, the carboxyl protecting groups are each independently methyl, ethyl, phenyl, or benzyl.
Typical carboxyl protecting groups may include methyl, ethyl, and tert - butyl.
Other examples of carboxyl protecting groups are given in Greene and Wutts, above.
For example, carboxyl protecting groups are allyl, benzyl or substituted benzyl groups, and the like.
R is hydrogen or a carboxyl protecting group ; and X is a chiral agent ;.
Is a carboxyl protecting group ;.
Is H or a carboxyl protecting group ;.
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