UPDATE 2-London stocks slip as BoE slows bond purchases; AstraZeneca weighs <!-- no image --> <div>* FTSE 100 down 0.5%, FTSE 250 off 0.7% (Adds comment, updates prices to close)<div class="feedflare"> <a href="http://feeds.reuters.com/~ff/reuters/UKBankingFinancial?a=I28FSDG2tuE:BBUbkZexGk0:yIl2AUoC8zA"><img src="http://feeds.feedburner.com/~ff/reuters/UKBankingFinancial?d=yIl2AUoC8zA" border="0"></a> <a href="http://feeds.reuters.com/~ff/reuters/UKBankingFinancial?a=I28FSDG2tuE:BBUbkZexGk0:V_sGLiPBpWU"><img src="http://feeds.feedburner.com/~ff/reuters/UKBankingFinancial?i=I28FSDG2tuE:BBUbkZexGk0:V_sGLiPBpWU" border="0"></a> <a href="http://feeds.reuters.com/~ff/reuters/UKBankingFinancial?a=I28FSDG2tuE:BBUbkZexGk0:F7zBnMyn0Lo"><img src="http://feeds.feedburner.com/~ff/reuters/UKBankingFinancial?i=I28FSDG2tuE:BBUbkZexGk0:F7zBnMyn0Lo" border="0"></a> </div><img src="http://feeds.feedburner.com/~r/reuters/UKBankingFinancial/~4/I28FSDG2tuE" height="1" width="1" alt=""></div> Posted by Reuters