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Dr. Adejare Section - Organic Review
Organic Molecules
97
Pharmacology
Graduate
08/31/2010

Additional Pharmacology Flashcards

 


 

Cards

Term
Ammonia
Definition
[image]
Term
Primary Amine
Definition
[image]
Term
Alcohol
Definition
[image]
Term
Aldehyde
Definition
[image]
Term
Phenols have a pKa of......why?
Definition
10....the resonance structure makes it have different characteristics than normal alcohols
Term
In vitro, the enzyme which reduces molecules is called
Definition
Reductase
Term
An aldehyde when reduced becomes
Definition
an alcohol.
Term
An aldehyde when oxidized becomes
Definition
a carboxylic acid.
Term
Can ketones go through oxidation?
Definition
No - there are no places to add an oxygen.
Term
What becomes of ketones when they are reduced by reductase?
Definition
They become alcohols.
Term
Ketone
Definition
[image]
Term
Carboxylic Acid
Definition
[image]
Term
Ester
Definition
[image]
Term
In Vitro, which enzyme breaks the ester bond?
Definition
Esterase
Term
Esterase use what type of reaction to break the ester bond?
Definition
Hydrolysis
Term
When esters go through hydrolysis with esterase, what two compounds are made?
Definition
A carboxylic acid and an alcohol.[image]
Term
A lactone can be also called...
Definition
a cyclic ester.
Term
Lactone
Definition

[image]

All different types of lactones: cyclic esters.

Term
Ether
Definition
[image]
Term
Amide
Definition
[image]
Term
The enzyme that breaks the Amide bond is called what?
Definition
Amidase
Term
Amidase uses which type of reaction?
Definition
hydrolysis.
Term
Lactams are also called what?
Definition
Cyclic amides.
Term
Lactam
Definition

[image]

Different types of lactams.

Term
Imide
Definition
[image]
Term
Urea
Definition
[image]
Term
Carbamate
Definition
[image]
Term
Azo
Definition
[image]
Term
An example of an azo drug is
Definition
Prontosil.
Term
What is Prontosil?
Definition
It is a sulfonamide anitbiotic.
Term
Protonsil is considered what type of drug?
Definition
It is a Prodrug.
Term
Why is Prontosil considered a Prodrug?
Definition
Because in vitro it is reduced by the enzyme reductase - releasing the active form of the drug.
Term
Where in the molecule does reductase cleave prontosil?
Definition
It cleaves it along the AZO bond.
Term
Thioether
Definition
[image]
Term
Sulfoxide
Definition
[image]
Term
Sulfone
Definition
[image]
Term
Sulfonic Acid
Definition
[image]
Term
Sulfonamide
Definition
[image]
Term
What is a Macrolide?
Definition
a large lactone ring.
Term
Nitro group
Definition
-NO2
Term
Cyano group
Definition
-CN
Term
Phenethylamines
Definition
[image]
Term
What are three Catecholamines?
Definition
Norepinephrine, epinephrine, and Dopamine
Term
norepi.
Definition
[image]
Term
epinephrine
Definition
[image]
Term
Dopamine
Definition
[image]
Term

B-lactam antibiotic

 

Definition
[image]
Term
Aryloxypropanolamines
Definition
[image]
Term
Lactamase breaks the lactam bond between which atom?
Definition
The N- and the -C=O.
Term
Lactamase catalyzes what type of reaction?
Definition
Hydrolysis.
Term
What does hydroxylase do?
Definition
It adds hydroxyl groups, it DOES NOT cleave anything.
Term
If a hydroxyl group needs to be taken off a molecule, what must happen?
Definition
The alcohol needs to be reduced.
Term
Which three enzymes perform hydrolysis?
Definition
Esterase, Amidase, Lactamase
Term
Phase 1 metabolism consists of what three reactions?
Definition
Oxidation, reduction, hydrolysis
Term
Phase II metabolism consists mainly of...
Definition
...conjugation of the molecule.
Term
Which enzyme catalyzes the synthesis of acetylcholine?
Definition
Choline acetyltransferase.
Term
Choline Acetyltransferase has what two ligands?
Definition
Choline & Acetyl coenzyme A.
Term
Which enzyme catalyzes the inactivation of acetylcholine?
Definition
Acetylcholinesterase
Term
To inactivate Acetylcholine, which bond needs to be broken?
Definition
An ester bond.
Term
The pKa is equal to what?
Definition
-logKa
Term
If you have a strong acid, what is the Ka?
Definition
It is high,
Term
If you have strong acid, is the pKa low or high?
Definition
It is low.
Term
Ka=
Definition
[H3O+][A-]/[HA]
Term
pH=
Definition
pKa + log([A-]/[HA])
Term
In Henderson-Hasselbalch Equation, how are the equations different for acids and bases?
Definition
For and acid: The log fraction is the conjugate base/acid.
For a base: The base/conjugate acid.
Term
% ionization of acids=
Definition
100/(1+10^(pKa-pH))
Term
% ionization of bases =
Definition
100/(1+10^(pH-pKa))
Term
When pKa=pH what happens?
Definition
The ionized and nonionized proportion is the same.
Term
If the pH of a solvent is more than the pKa of an HA acid solute, will the solute be in a ionized form?
Definition
YES.
Term
It the pH of a solution is less than the pKa of a HA acid solute, will the solute be an ionized form?
Definition
No, it will not give up its hydrogen.
Term
Electron Withdrawing groups make molecules more What?
Definition
More acidic.
Term
Electron donating groups make molecules more what?
Definition
More basic.
Term
Which changes the pKa to greater degree: e- donating or e-withdrawing?
Definition
e- withdrawing.
Term
Are Amides, Imides, and Sulfonamides considered HB or HA acids?
Definition
HA acids.
Term
Amines are considered what type of acids?
Definition
HB acids.
Term
What are the strongest e- donating substituents?
Definition
-N(CH3)2
-NH2
-OH
Term
Which are all the e- donating molecules?
Definition
-N(CH3)2
-NH2
-OH
-OCH3
-NHC=OCH3
-OC=OCH3
-R
-Cl,Br,I
Term
What are the strongest e- accepting (deactivating)?
Definition
-N(CH3)3
-NO2
-C-=N
Term
Which are all the deactivating substituents?
Definition
-N+(CH3)3
-NO2
-C-=N
-SO3H
-C=OH
-C=OCH3
-COOH
-C=OCH3
-C=ONH2
-N+H3
Term
In order to increase solubility, what must be done to the molecule?
Definition
The number of interaction must be increased.
Term
What are electron donating groups?
Definition
-NC2
-Amines
-Hydroxides
-Ether
-Amide (N)
-Ester
-Cl, Br, I
Term
What are elctron withdrawing groups?
Definition
-N+C3
-Nitro
-Cyano
-SO3H
-Aldehyde
-Ketone
-Amide (C)
-Ammonia
Term
pKa of carboxylic acid
Definition
4.6
Term
pKa of alcohol
Definition
18
Term
pKa of Amide
Definition
15
Term
Absorption has to do with 2 things; which are?
Definition
Residence Time in the body (in touch with the
& equilibrium shifts.
Term
What are the weakest forces?
Definition
London forces.
Term
London forces have a attractive force less than
Definition
2 KJ/mol
Term
The effective distance of london forces is
Definition
.4-.6 nm
Term
Hydrophobic interactions are important becuaser they
Definition
stabilize the formation of proteins.
Term
Because of hydrophobix interactions, hydrocarbons cannot form ______ _____ in water.
Definition
Hydrogen bonds.
Term
Water becomes more ordered around hydrocarbon. What does this mean in terms of entropy?
Definition
Order increase, entropy decreases.
Term
What are stronger dipoles or hydrogen bonding?
Definition
H-bonding.
Term
Which are stronger, Ionic bonds or covalent bonds?
Definition
Ionic bonds.
Term
The molecules of HF, H2O, and NH3 have very high boiling points. Why?
Definition
They can form hydrogen bonds.
Term
Amine pKa
Definition
9.6
Term
pKa
Definition
20
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