Noarchive metatags

[Jojo]

Hi, We have recently done a website restructure. We have put some 301 redirects in place however we still have google showing the old urls of pages on our site - even though when you click them it takes you to the proper page on the site. If i add a 'noarchive' metatag to all pages on our website will this mean that i should no longer see old cached pages/url in SERPS and that the content returned will be the correct page and url? Just want to make sure that by adding 'noarchive' tag to current live pages won't negatively impact our content and SEO