I know as not to have any interest in me at all

Sorry my mistake.

I know her as not to have any interest in me at all

AnonymousIs this correct?

That does not carry any meaning.

This is meaningful, but still awkward:
He is known as not to have any interest in me at all.

AnonymousI know her as not to have any interest in me at all

Really awful English!

I know she has no interest in me at all.
I know she isn't interested in me at all.

AnonymousI know her as not to have any interest in me at all.

Awkward. A native speaker would say:
I know she has no interest in me at all.

This sentence is written in a book I am trying to read. I say trying because I am not a native speaker. Would this sentence have been spoken a long time ago perhaps?

How ancient is this book?

The volumes of Jospeh Addison

AnonymousThe volumes of Jospeh Joseph Addison

Joseph Addison (1 May 1672 – 17 June 1719) was an English essayist, poet, playwright, and politician.

You're not going to learn much English that's useful these days from anything written that long ago. That's 300 years ago!

CJ

CalifJimThat's 300 years ago!

At least they are not trying to read Beowulf or Chaucer.