Questions (i) How might the inclusion of tetracycline in triple therapy for gastric ulcers be problematic? (ii) Considering EACH of the portions of the tigecycline derivatives X and Y (shown), give the correct order of basicity for EACH nitrogen therein. (iii) Briefly discuss the utility of tigecycline as a treatment for geriatric, hospital-acquired pneumonia.

Questions (i) How might the inclusion of tetracycline in triple therapy for gastric ulcers be problematic? (ii) Considering EACH of the portions of the tigecycline derivatives X and Y (shown), give the correct order of basicity for EACH nitrogen therein. (iii) Briefly discuss the utility of tigecycline as a treatment for geriatric, hospital-acquired pneumonia.