** Drugmaker AstraZeneca trades around one-weekhighs on the back of BofA Merrill Lynch upgrade to "buy", from"neutral".
** Stock up 0.6 pct, sixth-top riser on Britain's FTSE 100, which sheds 0.4 pct.
** BofA ML highlights dramatic pipeline progression, drivenby a change in R&D process and culture in recent years, with amore innovation-focussed management team.
** Bank rated at five stars for recommendation accuracy onAstraZeneca, according to StarMine. (RM: tricia.wright1.thomsonreuters.com@reuters.net)