Ochem

The stereocenters that i mark with the red arrow are correct: http://prntscr.com/jtrxq Someone can help to identify what are R and what are S. I found that in wikipedia: (4S,4aR,5S,5aR,6R,12aS) but i dont know where they are, if someone cand get the image in paint and circulate them i will aprecciate.

Yes is very hard, i need to draw the spectra of the Infrared and the H-NMR. I find that infrared, someone can say me if this image of the infrared is related to Doxycyline: http://prntscr.com/jtc0f

Hi friends, I need help with the drawing of the Infrared and H-NMR of Doxycycline, the teacher have not give us the material to do the infrared and the H-NMR is for that reason that i dont have any idea. In the internet seach i dont have found anything. Your help my friends can help me to pass the class or not, this homework is the pass for me to Organich Chemistry 2 Help me!!! with the Infrared and H-NMR of Doxycyline pleasee!!