Examples of 'hydroxyl protecting' in a sentence
Meaning of "hydroxyl protecting"
hydroxyl protecting: a chemical process that involves preserving or shielding hydroxyl groups in a molecule
How to use "hydroxyl protecting" in a sentence
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hydroxyl protecting
Represents a hydrogen atom or a hydroxyl protecting group.
Preferred hydroxyl protecting groups are trimethylsilyl and triethylsilyl.
Deprotecting of said hydroxyl protecting groups.
Hydroxyl protecting groups are well known in the art.
The method used is tailored to the particular hydroxyl protecting group.
An example of a useful hydroxyl protecting group is a triisopropylsilyl moiety.
These protecting groups are used in the invention as hydroxyl protecting groups.
The hydroxyl protecting groups were removed under standard conditions.
In the context of the present invention a preferred hydroxyl protecting group is benzyl.
The hydroxyl protecting group may also be a silyl group.
X is halo and PG is a suitable hydroxyl protecting group.
The hydroxyl protecting groups may be removed by conventional techniques.
The hydroxy protecting group P can be any hydroxyl protecting group known in the art.
The hydroxyl protecting groups mav be removed by conventional techniques.
Particularly preferred hydroxyl protecting groups include THP.
See also
The hydroxyl protecting group used in this step is not particularly limited.
A compound having the formula wherein P is a hydroxyl protecting group.
A preferred hydroxyl protecting groups for the current invention is methyl.
Oxidizing the cyclohexanol hydroxyl group and removing hydroxyl protecting group X.
P is a hydroxyl protecting group.
Step 5 is the introduction of hydroxyl protecting group.
The hydroxyl protecting groups may be removed by well known standard procedures.
In certain embodiments, the hydroxyl protecting group is isopropyl.
Hydroxyl protecting groups also include those appropriate for the protection of phenols.
X and Y are hydroxyl protecting groups.
Hydroxyl protecting groups Hydroxyl protecting groups are well known in the art.
In certain embodiments, the hydroxyl protecting group is methyl.
As a hydroxyl protecting group, an acyl group may form an ester.
P represents hydroxyl or hydroxyl protected by a hydroxyl protecting group ;.
A wide variety of hydroxyl protecting groups can be employed in the methods of the invention.
Ry is hydrogen or preferably a hydroxyl protecting group ;.
Other suitable hydroxyl protecting groups could be used instead of the acetate group.
Throughout the synthetic schemes, various hydroxyl protecting groups are depicted.
Other suitable hydroxyl protecting can also be employed in the place of the isopropyl group.
The process of claim 1 wherein the acid labile phenolic hydroxyl protecting group is tetrahydropyranyl.
Preferred values for hydroxyl protecting groups and cyclic diol protecting groups are given below.
Consequently, the silyl group also eliminates the need for introduction of hydroxyl protecting groups.
Removing the suitable hydroxyl protecting group to form a compound of formula La.
In one embodiment, the deprotecting reagent is a suitable reagent for deprotecting a phenolic hydroxyl protecting group.
Illustrative examples of hydroxyl protecting groups have been described by Green and Wuts.
A compound according to claim 1 of formula wherein Rc is a hydroxyl protecting group.
Is H or a hydroxyl protecting group.
In a more particularly preferred embodiment the R1 hydroxyl protecting group is benzyl.
Is hydrogen or a hydroxyl protecting group, preferably a hydroxyl protecting group ;.
In some embodiments, PG is a hydroxyl protecting group.
Suitable amino or hydroxyl protecting groups include benzyl, benzyloxycarbonyl or t-butyloxycarbonyl groups.
In one embodiment, P is hydroxyl protected by a hydroxyl protecting group as defined above.
Hydroxyl protecting groups include esters, carbonates and carbamate protecting groups.
Removal of the hydroxyl protecting groups e . g.
In another embodiment, G in compounds of any of Formulae I-V is a hydroxyl protecting group PG.
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