A newer generation of antipsychotics, among them clozapine, are now used to treat the symptoms of schizophrenia. These drugs are more effective than earlier drugs in improving patient response in the areas of social withdrawal, apathy, memory, comprehension, and judgment. They also produce fewer side effects such as seizures and tardive dyskinesia (involuntary body movements). In the following synthesis of clozapine, Step 1 is an Ullmann coupling, a type of nucleophilic aromatic substitu- tion that uses a copper catalyst. Ме OH OH NO2 NO, Ullmann coupling H Cl- CI H,N- N. (1) (2) 2,5-Dichloro- 2-Aminobenzoic acid (A) nitrobenzene (Anthranilic acid) Me Me Me NO, NH, AISO,H Cl- N· H. Cl- (3) H. (4) H. (B) (C) Clozapine
Carbohydrates
Carbohydrates are the organic compounds that are obtained in foods and living matters in the shape of sugars, cellulose, and starch. The general formula of carbohydrates is Cn(H2O)2. The ratio of H and O present in carbohydrates is identical to water.
Starch
Starch is a polysaccharide carbohydrate that belongs to the category of polysaccharide carbohydrates.
Mutarotation
The rotation of a particular structure of the chiral compound because of the epimerization is called mutarotation. It is the repercussion of the ring chain tautomerism. In terms of glucose, this can be defined as the modification in the equilibrium of the α- and β- glucose anomers upon its dissolution in the solvent water. This process is usually seen in the chemistry of carbohydrates.
L Sugar
A chemical compound that is represented with a molecular formula C6H12O6 is called L-(-) sugar. At the carbon’s 5th position, the hydroxyl group is placed to the compound’s left and therefore the sugar is represented as L(-)-sugar. It is capable of rotating the polarized light’s plane in the direction anticlockwise. L isomers are one of the 2 isomers formed by the configurational stereochemistry of the carbohydrates.
Is clozapine chiral? If so, how many of the possible stereoisomers are formed in this synthesis?
![A newer generation of antipsychotics, among them clozapine, are now used to treat
the symptoms of schizophrenia. These drugs are more effective than earlier drugs
in improving patient response in the areas of social withdrawal, apathy, memory,
comprehension, and judgment. They also produce fewer side effects such as seizures
and tardive dyskinesia (involuntary body movements). In the following synthesis of
clozapine, Step 1 is an Ullmann coupling, a type of nucleophilic aromatic substitu-
tion that uses a copper catalyst.
Ме
OH
OH
NO2
NO,
Ullmann
coupling
H
Cl-
CI
H,N-
N.
(1)
(2)
2,5-Dichloro-
2-Aminobenzoic acid
(A)
nitrobenzene
(Anthranilic acid)
Me
Me
Me
NO,
NH,
AISO,H
Cl-
N·
H.
Cl-
(3)
H.
(4)
H.
(B)
(C)
Clozapine](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F1cd5789a-7652-47af-84c5-de9d7e3b29db%2F796d3d88-287e-473c-826c-f2120ac78c28%2Fov1p3aq.jpeg&w=3840&q=75)
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