Abstract: Disclosed are methods of producing of alkoxy arylamine compounds which find particular use in the syntheses of pharmaceutical drug. The alkoxy arylamine compounds generally have the formula: H2N—Ar—OR wherein Ar is an unsubstituted or substituted aromatic group, and R is an unsubstituted or substituted alkyl or aryl group. The methods comprise generally, the steps of (a) alkylating a protected-amino arylalcohol to form a protected-amino arylether; and (b) deprotecting said protected-amino arylether to form an alkoxy arylamine compound.

Abstract: An optically active amine compound and a method for preparing same are provided which compound has the structure ##STR1## in the form of its R-(+) enantiomer or S-(-) enantiomer, wherein R and R.sup.1 are independently H, lower alkyl or halogen, R.sup.2 is H or lower alkyl and R.sup.3 is lower alkyl, the optically active amine is useful in the optical resolution of DL-3-acylthio-2-methylpropanoic acid wherein acyl is acetyl or benzoyl. The optically active D-(+)-3-acylthio-2-methylpropanoic acids are used as intermediates for preparing antihypertensive agents, such as captopril.

Abstract: An optically active amine compound and a method for preparing same are provided which compound has the structure ##STR1## in the form of its R-(+) enantiomer or S-(-) enantiomer, wherein R and R.sup.1 are independently H, lower alkyl or halogen, R.sup.2 is H or lower alkyl and R.sup.3 is lower alkyl, the optically active amine is useful in the optical resolution of DL-3-acylthio-2-methylpropanoic acid wherein acyl is acetyl or benzoyl. The optically active D-(+)-3-acylthio-2-methylpropanoic acids are used as intermediated for preparing antihypertensive agents, such as captopril.