[miked87]

I am so confused on a organic nomenclature question. I thought I was getting the hang of it but clearly not...

if anyone can shed some guidance I would be much appreciated

[discodermolide]

What is confusing you?

Google the Cahn-Ingold-Prelog rules while you think about my question.

[miked87]

I apolgoise... It seems my computer froze and not all the message was sent

Ok.. So I have got the R/S all fine, as I can do that. But its naming the molecule? I have tried and tried but cant seem to name it (or others for that matter) I have googled and looked in books but struggling

[discodermolide]

Look for the longest carbon chain containing the carboxylic acid.

[jlanrdy287]

Then of course add the (R) or (S) in there.
Hope this helps, I am currently taking organic 1 and I believe I am pretty strong with the nomenclature section.

[discodermolide]

OK, it is a pentatonic acid, what about the OH and methyl groups, with respect to their numbering and configuration?