" This is the hydrochloride, mp, 166-168'(dec.). The hydrochloride melts at 256"(dec.). Analysis after further drying: Calcd. for C, 67.20; H, 8.70. Found: C, 67.40; H, 8.39. dYields for other runs of this compound were much lower. e Letter preceding percentage yield represents procedure followed. to one-fourth volume, adding water and cooling gave an additional 6.4 g.(9470 yield). The other ydiethylaminopropyl esters (V and VI, R=(C* H&. N ...