TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred Components: The hydrochloric acid is used in diluted form having strength of 2N to 10N.    TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Method: The preferred temperature of the reaction is 55-60 degrees C. The process further involves a step of converting the racemic compound (I) into (S)-3-(aminomethyl)-5-methylhexanoic acid (IX). The process involves treating the enantiomerically enriched 3-carbamoylmethyl-5-methylhexanoic acid with hydrochloric acid at a temperature of 45-70 degrees C to form 3-isobutyl glutarimide (XVII); hydrolyzing the compound 3-isobutyl glutarimide with aqueous sodium hydroxide solution at 20-45 degrees C to form racemic 3-carbamoylmethyl-5-methylhexanoic acid (I); isolating the racemic compound (I); reacting the racemic compound (I) with (R)-(+)-phenylethyl amine to form (R)-(-)-3-carbamoyl-methyl-5-methylhexanoic acid (R)-(+)-phenylethyl amine salt (XV); reacting the compound (XV) with hydrochloric acid to get (R)-(-)-3-carbamoylmethyl-5-methylhexanoic acid (XVI); and reacting the compound (XVI) with reagents selected from phenyliodine diacetate and benzyltrimethyl ammonium tribromide in presence of base and solvent at temperature of 0-30 degrees C to get (S)-3-(aminomethyl)-5-methylhexanoic acid (IX), where the preferred temperature of the reaction is 0-10 degrees C. Preferred Components: The solvent used for the reaction is selected from acetonitrile, N,N-dimethylformamide, N,N-dimethylacetamide and/or water. ACTIVITY - Anticonvulsant; Analgesic; Antiinflammatory; Gastrointestinal-Gen.; Antialcoholic; Hypnotic; Neuroleptic; Antimanic. No biological data given.    MECHANISM OF ACTION - None given.    EXAMPLE - 3-(Carbamoylmethyl)-5-methylhexanoic acid (115.0 g) was charged to a mixture of chloroform (1150 ml) and methanol (11.5 ml) at 25-30 degrees C. The reaction temperature was raised to 45-50 degrees C and stirred for 15 minutes. (R)-(+)-Phenylethylamine (54.11 g) and pure (R)-(-)-3-(carbamoylmethyl)-5-methylhexanoic acid (0.100 g) was then added to the reaction mixture at 45-50 degrees C. The reaction temperature of the reaction mass was raised to 55-60 degrees C and maintained for one hour. The reaction was cooled to 28-32 degrees C and stirred. The solid product was filtered at 28-32 degrees C and washed with chloroform (207 ml). The product (R)-(-)-3-(carbamoylmethyl)-5-methylhexanoic acid (R)-(+)-phenyl ethylamine salt was dried at 55-60 degrees C, until constant weight. The weight of the product was 80.5 g; and yield was 85.0%. Sodium hydroxide solution (14.83 g dissolved in 82 ml water) was charged to the mother liquor (1210 ml) containing enantiomerically enriched 3-(carbamoylmethyl)-5-methyl-hexanoic acid obtained above. The reaction mass was cooled to 0-5 degrees C and stirred for 30 minutes. The aqueous layer was separated and dilute hydrochloric acid (170 ml) was charged to the reaction mass and the temperature was raised to 55-60 degrees C. The mixture was stirred for 8 hours and cooled to 0-5 degrees C. The product was filtered, washed with water. The isolated compound 3-isobutyl glutarimide was dried at 55-60 degrees C, where weight of product was 44.7 g, and yield was 74.5%. 3-Isobutyl glutarimide (40 g) was charged to water (80 ml). Sodium hydroxide solution (9.93 g dissolved in 40 ml water) was added to the reaction mass at 10-15 degrees C and stirred for one hour. The temperature was raised to 35-40 degrees C for 1 hour. The reaction mass was cooled to 10-15 degrees C. Dilute hydrochloric acid (27 ml) was charged to adjust pH to approximately 1. The reaction mixture was cooled to 0-5 degrees C and stirred. The crude racemic 3-(carbamoylmethyl)-5-methylhexanoic acid was purified and washed with water. The product was dried at 55-60 degrees C. Crude solid product was then purified by ethyl acetate:water (10:1, 2.0 vol.) mixture to obtain pure racemic 3-(carbamoylmethyl)-5-methylhexanoic acid in weight of 39.10 g and yield of 88.4%.