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HW08Key - (anabolic steroid chiral centers(b O H OH H...

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Bocknack CH 310M/318M Spring 2009 Graded Homework Problem #08 – Answer Key Deadline : 3:00 p.m., Thursday, 3/5/09 LATE WORK WILL NOT BE ACCEPTED OR GRADED!!! This problem is worth a total of 20 raw points. Each box is worth 4 points. In each part below, determine the total number of chiral centers present in each molecule. Write your answer in the appropriate box. No further explanation is required. (a) O OH OH OH OH Tetrahydrogestrinone
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Unformatted text preview: (anabolic steroid) chiral centers (b) O H OH H chiral centers (c) (d) Galactose (a sugar) N S Cl O O Clopidogral (antiplatelet agent) chiral centers O O H OH O chiral centers Phenolphthalein (acid-base indicator; laxative) (e) N H N H O OH N O OH O OH NH 2 O N OH Tigecycline (antibiotic) chiral centers * * * * * * * * * * * 4 4 1 3 * Note : There should also be a hydroxyl substituent on this carbon!...
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