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- Draw the most stable chair conformation of mentol and label each substituents as axial or equatorial.Locate the stereogenic centers in the attached Newman projection and labeleach center as R or S.Assign R or S configurations to each stereogenic center of isoborneol and borneol. Give the relationship between these two stereoisomers.
- Lithocholic acid is an A–B cis steroid found in human bile. Draw lithocholic acid showing chair conformations, as in Figure 27-11, and tell whether the hydroxyl group at C3 is axial or equatorial.Citalopram is an antidepressant pharmaceutical that is sold as a racemic mixture. However, it is known that the (S) enantiomer is 30x more biologically active than the (R) enantiomer. Draw the (S) configuration.For the following molecules: a. How many stereogenic centers are present? b. How many stereoisomers are possible for these molecules?
- Label the stereogenic center in the following compound as R or S. What is the Fischer projection for this molecule?Following are four Newman projection formulas for tartaric add. (a) Which represent the same compound? (b) Which represent enantiomers? (c) Which represent a meso compund? (d) What are diastereomers?How to ID and assign each stereocenter (using cahn, ingold) R, S system.
- b) Circle the correct Haworth structure of the four provided below showing the β-isomer of the following Fischer projection. (Look at the attached image) (Please Show your work so I can understand going forward)Determine the configuration of each stereogenic center in the compound below. Highlight the carbon in red if the configuration is R, and in blue if the configuration is S.Draw all possible configurational stereoisomers for the given molecule below. Designate the R/S on the stereogenic centers and E/Z on the C=C
