I'm sorry to hear that you're not enjoying your first year, first year is usually the toughest, and I personally know a couple of people decided to leave the program after their first or second semester. If your end goal is to get a job in the industry then a Masters degree is sufficient, and a PhD program's rank might not be that important as long as you are productive.
You may
(1) stick with your current program and leave with an external Masters degree and get a job at a pharmaceutical/chemical company
(2) apply to a PhD program with 3+ research groups that you find interesting or in a better location
(3) get a MBA degree, a business and a hard science degree would make you pretty marketable
(4) if you don't mind sick people, then you could get a nursing degree from a community college, or physician assistant degree
(5) if you don't like people in general, then you could go into Computer Science and learn about programming and become a programmer.