Examples of 'protected hydroxy' in a sentence
Meaning of "protected hydroxy"
Protected hydroxy: A term used in organic chemistry to describe a hydroxyl group that is shielded or kept safe from unwanted reactions; commonly used in the synthesis of complex molecules
How to use "protected hydroxy" in a sentence
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protected hydroxy
It is preferred to use a protected hydroxy group.
The protected hydroxy groups may be split according to conventional techniques.
The deprotection conditions used necessarily depend on the nature of the protected hydroxy groups.
Is an optionally protected hydroxy group, and.
Preferred protected hydroxy groups that may be mentioned include trialkylsilyloxy groups, for example tbutyldimethylsilyloxy.
Y in the above Scheme is a hydroxy group or a protected hydroxy group.
The " optionally protected hydroxy group " means an unprotected or protected hydroxy group.
A hydroxy group or a protected hydroxy group ;.
Thereafter, the protected hydroxy is de-protected and a different substituent may be placed thereon.
Deprotection of the protected hydroxy group ;.
When Rf is a protected hydroxy group, it may be deprotected after the coupling step.
A compound of the invention may be in a protected amino, protected hydroxy or protected carboxy form.
Preferred protected hydroxy groups include silyl protected hydroxy groups, such as hydroxy protected by TBS.
The methood according to claim 1, wherein the protected hydroxy group is benzyloxy group.
Examples of R ² protected hydroxy groups include silyloxy such as trimethylsilyloxy and t-butyldimethylsilyloxy.
See also
OX is an optionally protected hydroxy group ;.
Deprotecting a compound of formula I, wherein R1 is protected amino or protected hydroxy.
A particular value of Y is hydroxy or protected hydroxy and R 1a is in particular methyl.
A protected hydroxy group ;.
It is generally desirable to convert the free hydroxy groups to protected hydroxy groups ( X ).
Is a protected hydroxy group, and.
Thus, it is preferred to have Y as a protected hydroxy group.
Formation of the protected hydroxy compound of Formula 23 by reacting 22 with bromomethylmethyl ether and diisopropylethylamine ;.
In this group of compounds R ₂ preferably is optionally protected hydroxy and R ₄ preferably is a methyl group.
R ₈ represents an optionally protected hydroxy group, acyloxy, imidazolylcarbonyloxy or alkoxycarbonyloxy and R8a represents hydrogen ;.
R4a is a hydroxy group or a protected hydroxy group ; or.
Protected hydroxy ( X2 and / or X4 ) represents silyloxy, esterified or etherified hydroxy, tetrahydropyranyloxy.
Is hydroxy, protected hydroxy or.
Suitable functional groups for conversion are hydroxy, bromo, chloro, or protected hydroxy.
R ₁ represents an optionally protected hydroxy group and R1a represents hydrogen ;.
Ar is aryl or heteroaryl ; OX is an optionally protected hydroxy group ;.
Is hydrogen, hydroxy, protected hydroxy or together with R14 forms a carbonate ;.
Alternatively, the following method can be used where R12 is a protected hydroxy group.
R21a is a hydroxy or protected hydroxy group.
A compound of formula ( II ) as defined in claim 9 wherein R is hydroxy or protected hydroxy.
Compound ( 1b ) can be obtained by deprotecting the protected hydroxy groups of compound ( 1a ) by routine methods.
A compound of formula ( II ) or a salt thereof, wherein Z is protected hydroxy group.
R ¹ is C 1-4 alkyl optionally substituted by at least one optionally protected hydroxy group or fluoro ;.
The phenol is protected to give 8B ( analogous to 2A wherein R '' is a protected hydroxy group ).
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