41. It is also possible to make mixed oligomers of metal alkoxides and amides . 42. Beck administered procaine amide , a medicine to stabilize the heart s rhythm. 43. The direct amination of pyridine with sodium amide takes place in liquid ammonia. 44. The amide bridge can be inverted without affecting the potency of the agonist. 45. Methocymethyl protection of both the amide and the free phenol gave compound 37. 46. These include aliphatic and cycloaliphatic amines, polyaminoamides, amides , and anhydrides. 47. They found that the amide group containing dervates were the most promising ones. 48. Alkylating this with 2-dimethylaminoethylchloride in the presence of sodium amide gives chlorphenamine. 49. For example, amides and carboxylic acids react with Grignard reagents to produce ketones. 50. Pseudoephedrine amides are typically prepared by acylation with an acid chloride or acid anhydride.
