(a) Purchaser's priority: security interest claimed merely as proceeds. A purchaser of chattel paper has priority over a security interest in the chattel paper which is claimed merely as proceeds of inventory subject to a security interest if:
(1) In good faith and in the ordinary course of the purchaser's business, the purchaser gives new value and takes possession of the chattel paper or obtains control of the chattel paper under section 9-105; and