HO. NH2 hypoglycin A

Q: 1. Draw all of the Newman projections for rotations about the C3→ C4 bonds in…

A: Answer: To visualise the organic molecule, there are different projection formula used. Newman…

Q: Saquinavir (trade name Invirase) is a protease inhibitor, used to treat HIV (human immunodeficiency…

A:

Q: meso-Tartaric acid is اخترأحد الخيارات a. always optically inactive b. sometimes optically inactive…

A:

Q: Draw the structure of (S,S)-ethambutol, a drug used to treat tuberculosis that is 10 times more…

A: Stereocentres in optically active compounds possess a definite configuration that is predicted using…

Q: lejimalide B, an anticancer agent with a 24-membered ring, is isolated from a tunicate found off le…

A: For E and Z compound: If the groups attached with the C=C double bond having the high priority…

Q: Iejimalide B, an anticancer agent with a 24-membered ring, is isolated from a tunicate found off Ie…

A: How to find E and Z-configuration? First of all look out for the double bonds in the structure and…

Q: Label the stereogenic centers in each molecule. OH Но a. b. dobutamine (heart stimulant used in…

A: somers are molecules with the same molecular formula but different structural formula. Isomers can…

Q: How is each compound (B–D) related to A? Choose from enantiomers, diastereomers, identical…

A: Enantiomers: When two isomers having mirror images but are non-superimposable to each other.…

Q: Eleostearic acid is an unsaturated fatty acid obtained from the seeds of the tung oii tree…

A: The structure of eleostearic acid is given as, There are two isomers of eleostearic acid. They are…

Q: The specific rotation of dextrorotatory tartaric acid is +12.7 degrees. A mixture of dextrorotatory…

A:

Q: 2. Below is the structure of a newly approved anticancer drug Nubequa. N. NH a. How many stereogenic…

A: Stereogenic center :- The center in molecule (carbon atom) which gives different stereoisomers on…

Q: Captopril is a drug used to treat high blood pressure and congestive heart failure. a.Designate each…

A: Chiral center: A carbon atom attached with 4 different atoms or groups  To find R and S…

Q: Label the stereogenic center(s) in each drug as R or S. L-Dopa is used to treat Parkinson's disease…

A: In defining the stereochemistry of any organic molecule we will come across two terms. Chiral…

Q: Saquinavir (trade name Invirase) belongs to a class of drugs called protease inhibitors, which are…

A: Saquinavir is a drug used to treat Human immunodeficiency virus (HIV).  Stereogenic centres are…

Q: Neuroprotectin D1 (NPD1) is synthesized in the body from highly unsaturated essential fatty acids.…

A: When two bulky groups on each doubly bonded carbon are on same side, then the alkene is cis or Z…

Q: Draw the structure of (S,S)-ethambutol, a drug used to treat tuberculosis that is 10 times more…

A: Detail drawing procedure of (S,S)-ethambutol in zigzag manner is given below

Q: Draw the products formed when cembrene A is treated with O3 followed by CH3SCH3. Label each product…

A: Alkene reaction with O3 and followed by CH3SCH3 is an ozonolysis reaction.

Q: 2. For each pair of structures shown, indicate whether the two species are constitutional isomers,…

A:

Q: Classify each substituent as electron donating or electron withdrawing.

A: Electron withdrawing substances are those who attract the electron density towards itself. Electron…

Q: Eleostearic acid is an unsaturated fatty acid obtained from the seeds of the tung oil tree…

A:

Q: Draw the structure of (S)-citalopram, a drug used to treat depression and anxiety that is much more…

A: Citalopram is sold asracemic mixture consisting of 50% of (R)-(-)-citalopram and 50%…

Q: 10.51 Draw all stereoisomers formed in each reaction. b. Cl2 H20

A:

Q: Draw both enantiomers of clopidogrel (trade name Plavix), a drug given to prevent the formation of…

A: Enantiomers of clopidogrel: The chiral molecule are enantiomers known as non-superimposable mirror…

Q: Eleostearic acid is an unsaturated fatty acid obtained from the seeds of the tung oil tree…

A: Eleostearic acid. eleostearic acid is a fatty acid, one of two isomers of octadecatrienoic acid: (i)…

Q: Label the starred chirality center of the anti-cancer drug below R or S: OH `NH O ОН О ОН

A: Concepts of sereochemistry.

Q: 23. How many stereogenic centers are present in the following compound? он A) 1 B) 2 C) 3 D) 4 24.…

A:

Q: CH CH, CH H Br Br CH CH, CH, CH, A C a) Which one of the above (A, B.C or D) is…

A:

Q: The N-acetyl conjugate of isoniazid is NHNHCH3 `NHNHCOCH3 A B `NHNH2 azid `NHNHCOOH NHN(CH3)2 D

A: The question is based on the concept of organic reactions. we have to identify the correct compound…

Q: (S)-Lactic acid has a specific rotation of +3.8. (a) If the ee of a solution of lactic acid is 60%,…

A: This is a measurement to understand that which enantiomer of a compound is predominant.

Q: Chondrocole A is a marine natural product isolated from red seaweed that grows in regions of heavy…

A: The structure of chondrocole A is shown below.

Q: Label each stereogenic center in the following compounds as R or S.

A: a.

Q: a) The compound below is a commonly prescribed anti-depressant. During its manufacture it is…

A: The two stereogenic centers are marked with an asterisk as follows:

Q: 1. Give the number of stereogenic centers in the pain reliever Met-enkephalin, mark the…

A: Organic compounds can be defined as the compounds that contain carbon and hydrogen atoms in a…

Q: How is compound A related to compounds B–E? Choose from enantiomers, diastereomers, constitutional…

A: The system which is widely used now a days to specify configuration is the cahn-ingold-prelog system…

Q: 5.66 A mixture contains equal amounts of compounds A-D. A B C D a. Which compounds alone are…

A: A,B,C,D are four compounds.The asteric mark(*) indicated for chiral centre in the below structures.

Q: 1. (a) Explain why compound A is optically active while compound B is optically inactive at room…

A: Compound A is optically active while compound B not

Q: 10.46 lejimalide B, an anticancer agent with a 24-membered ring, is isolated from a tunicate found…

A:

Q: Draw the structure of (S,S)-ethambutol, a drug used to treat tuberculosis that is 10 times more…

A:

Q: Please assign the absolute configuration [i.e. (R) or (S)] to each of the stereogenic centers…

A:

Q: How many chirality centers are contained in (a) the aldotetrose and (b) the ketopentose just given…

A:

Q: 2. For each pair of structures shown, indicate whether the two species are constitutional isomers,…

A:

Q: Draw the final product and identify R or S or racemic in all chiral centers in the product. Ph CH…

A:

Q: Draw the products formed when cembrene A is treated with O3 followed by CH3SCH3. Label each product…

A: Alkene reaction with O3 and followed by CH3SCH3 is an ozonolysis reaction. The alkene bond breaks…

Q: Draw (2S, 3R)-2-bromo-3-chloropentane on the Fischer projection shown below.

A: Structure of (2S, 3R)-2-bromo-3-chloropentane is,

Q: Naproxen, a nonsteroidal anti-inflammatory drug that is the active ingredient in Aleve, has a…

A: (a) Naproxen exists as  S configuration.

Q: 2. (a) (i) HO HO Convert each of the compounds above into its more stable chair form. Explain your…

A: Here we have to write the most stable chair conformation of the following cyclohexane compounds.  In…

Q: For D-arabinose:a. Draw its enantiomer.b. Draw an epimer at C3.c. Draw a diastereomer that is not an…

A: (a)Enantiomers are stereoisomers that are not superimposable mirror images of each other and the…

Q: Draw the structure of (S,S)-ethambutol, a drug used to treat tuberculosis that is 10 times more…

A: The stereo centres in the above molecule are as shown below

Stereochemistry and Isomerism

Stereochemistry deals with the three-dimensional structure and properties of molecules. It explains the arrangement of atoms and their manipulation within a molecule in a 3D structure. Stereochemistry can be dealt with all types of molecules. Based on the stereochemistry of a molecule, the physical and chemical properties of the molecules vary.