Abstract: A compound of the formula ##STR1## is prepared by reacting an N-acylated-o-toluidine of the formula ##STR2## with n-alkyllithium to form a dilithio intermediate of the formula ##STR3## which can then be quenched with N-benzylidenemethylamine to fore compound II. Hydrolysis of compound(II) yields the free base ##STR4## or its salt, which can be cyclized to form 4,5-dihydro-2,3-dimethyl-4-phenyl-3H-1,3-benzodiazepine or its physiologically acceptable salts, which are useful as pharmacological agents.

Abstract: This invention relates to an analgesic composition and more particularly, to a directly dry compressible composition comprising at least about 70% by dry weight of the composition of acetaminophen and a metal carboxymethyl starch present in an amount sufficient for it to function both as a binder and as a disintegrating agent.

Abstract: There are disclosed compounds having the formula ##STR1## wherein R is hydrogen, loweralkyl or loweralkylcarbonyl; R.sub.1 is hydrogen, loweralkyl, loweralkylcarbonyl, aryl, diloweralkylaminoloweralkyl, arylloweralkyl, diarylloweralkyl, oxygen-bridged arylloweralkyl or oxygen-bridged diarylloweralkyl; R.sub.2 and R.sub.3 are independently H or CH.sub.3 ; X is hydrogen, loweralkyl, cycloalkyl, loweralkoxy, halogen, hydroxy, nitro, trifluoromethyl, formyl, loweralkylcarbonyl, arylcarbonyl, --SH, loweralkylthio, --NHCOR.sub.4 or --NR.sub.5 R.sup.6 where R.sup.4 is hydrogen or loweralkyl, and R.sub.5 and R.sub.6 are independently hydrogen, loweralkyl or cycloalkyl; Y and Z are independently a direct bond, CR.sub.7 R.sub.8 or CR.sub.7 R.sub.8 -CR.sub.9 R.sub.10 ; and P and Q are independently CR.sub.7 'R.sub.8 ', CR.sub.7 'R.sub.8 '-CR.sub.9 'R.sub.10 ' or CR.sub.7 'R.sub.8 '-CR.sub.9 'R.sub.10 '--CR.sub.11 R.sub.12, where each of R.sub.7 through R.sub.12 and R.sub.7 ' through R.sub.10 ' is independently H or CH.