Synthesis of Hydroxychloroquine patents bun.

You know…in case any chemfags need to know how this is done.

https://patents.google.com/patent/CN105693606A/en?q=hydroxychloroquine&oq=hydroxychloroquine&page=1

https://patents.google.com/patent/CN102050781A/en?q=hydroxychloroquine&oq=hydroxychloroquine&page=1

https://patents.google.com/patent/CN107266323B/en?q=hydroxychloroquine&oq=hydroxychloroquine&page=1

and many more methods listed here:

https://patents.google.com/?q=hydroxychloroquine&oq=hydroxychloroquine&page=2