Midterm-1-140A%20Spring%2008-Key

Midterm-1-140A%20Spring%2008-Key - Chemistry 140A Spring,...

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Chemistry 140A TOTAL POSSIBLE: 250 Spring, 2008 POINTS MISSED: - 0 First Midterm Exam-250 points 4/22/08 TOTAL: 250 DO NOT OPEN THIS EXAM UNTIL INSTRUCTED TO DO SO. ....FILL OUT THE FOLLOWING INFORMATION NOW : . LAST NAME (Print): KEY FIRST NAME (Print): Ima PID: _________________________________________________ SIGNATURE: _________________________________________ ID checker initials: ____________________ If you wish to have any answers considered for a re-grade, your exam must be completed in INK .
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1. (70 points) Tacrolimus (shown below) is a powerful immunosuppressive agent that conrols the rejection of transplanted organs in human patients. Refer to this structure to answer the questions that follow. O O N O O O O OCH 3 O H 3 CO OH H 3 CO OH Tacrolimus 1 2 3 4 5 6 7 8 9 10 11 12 13 15 14 16 17 H Fill in the following table by listing all of the functional groups present in tacrolimus in alphabetical order . Next, indicate the number of times that functional group appears in the molecule. Do NOT include “alkane” as a functional group for this exercise. (Note: the number of rows in the table is equal to OR greater than the actual number of different functional groups present). 2 pts each answer (table = 24 pts) Functional Group Name Number present in tacrolimus ALCOHOL 3 ALKENE 3 AMIDE 1 ESTER 1 ETHER 4 KETONE 2
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2 pts each answer; 46 pts this page * The total number of carbon atoms present in tacrolimus is: 44 * The total number of pi bonds present in tacrolimus is: 7 * The total number of lone electron pairs present in tacrolimus is: 25 * The covalent bond between carbons labeled 1 and 2 is made up of the overlap of the
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This note was uploaded on 10/25/2009 for the course CHEM chem 140A taught by Professor Dr.yang during the Spring '07 term at UCSD.

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Midterm-1-140A%20Spring%2008-Key - Chemistry 140A Spring,...

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