Research that has led to different derivatives by substitution for different R groups at sites indicated on the diagram has mostly been driven to find derivatives that
A. are more stable
B. are more effective against Gram-negative bacteria
C. are more effective against Gram-positive bacteria
D. are cheaper to manufacture
Answer:B
Research that has led to different derivatives by substitution for different R groups at sites indicated on the diagram has mostly been driven to find derivatives that
A. are more stable B. are more effective against Gram-negative bacteria C. are more effective against Gram-positive bacteria D. are cheaper to manufacture