I've recently had a completely transparent on-the-fly data compression function installed on my site (when a page is requested, the server compresses the page and sends a lot smaller file to the requester, where it is decompressed in the browser without delay).
Because of certain issues with that new function, the search engine will be offline another short while.
The article you posted has been discussed earlier in
Post 335851
(Sunlight: "MDA and MDMA from CTH reductive amination", Novel Discourse), but as there is no abstract to it in the original post your post has a purpose.