... A CONVENIENT SYNTHESIS OF 2,4IANINOQUINOLINE DERIVATIVES Simon F. Cainpbell*, J. David Hardstone and Michael J. Palmer Pfizer Central Research, Sandwich, Kent, England. ... Hp refers to the salt form characterised, (f) hydrochloride, (g) dihydrochioride, (h) free base. ... 13. SF Campbell in Xay Crystallography and Drug Action, Eds., AS Horn and CJ De Ranter, Clarendon Press, Oxford (1984) Chapter 19. (Received in UK 5 July 1984). References. 1. ...