Q1 Chiral Carbons (Wade 5-25) The following four structures are naturally occurring optically active compounds. Star (*) the asymmetric carbon atoms in these structures. СНО H CH, СООН foOH H- -ОН CH,OH H. H- - OH H,N ОН H CH,OH serine erythrose menthol camphor

The structure for testosterone is shown in Figure 7-5.  How many chiral carbons does it have?

OH 5. Classify the following alcohols n fo PMimary Secondlany and Crhavy cl CHCHCHOH b CH3CH CC2CH2OH CH3 a) oH

Explain why they would have different chemical properties.

d Copy the following structures into your notebook and determine the absolute configuration of each chiral center: H3CH₂C F Cl H H MIC1 CH3 ||| BI H₂CH₂C H H I ||||| CH₂CH₂CH3 "III COOH H OH OH

Which functional groups are present in each of the following medicines? OH HO2C, F -C=CH b. `N' NH NH, HO Tamiflu™ (antiviral) Cipro™ (antibiotic) TM YasminTM component (OCP)

1) CH₂-OH 2) ď + i HO H₂CRO4 H* 1

Sketch this molecule and then draw a circle around all the chiral carbons that you can find.   1. Classify the type of isomerism (if any) shown by the compounds below.

CHE 132 Ch. 18 - Carbohydrates 1. Classify the following carbohydrates in terms of the carbonyl type and the number of carbon atoms. a) Ctz-cH-CH-CH-ビーH CH--C2 OH oH OH OH OH ribose dehyinoxyacetone <) H-ċ-CH-CH-CH2 enythrese 2. Identify the chiral centers in the following molecules. HC-CH-CH2 ーC-CH OH OH OH gluperaldehyde dahydroxyacetone C) CH-CH-CH-CH- OH OH OH ーC-H ribose 3. Draw Fischer projections of the following carbohydrates. (do -for moleculed in #2)

The structure for testosterone is shown in Figure 7-5. How many possible stereoisomers does it have?