-2-methylcyclohexanecarboxylate. A Schmidt reaction gave the cis-2-amino-derivative, which was converted via the 1-carbohydrazide into cis-2-aminomethyl-1-methylcyclohexylamine, which was cyclised with phosgene. A Hofmann reaction with methyl cis-2-carbamoyl-trans-2-methylcyclohexanecarboxylate, however, gave cis-2-amino-1-methylcyclohexanecarboxylic acid, which was converted into 4a-methyl-cis-oc
3,4,5,6,7,8-六氢
喹唑啉-2(1 H)-one与硝基
乙酸在大约1℃熔融。60°得到高产率的8a-硝基甲基-顺式-八氢
喹唑啉-2(1H)-一。该产物的立体
化学通过推导出1个H NMR光谱和通过转化,通过
氨甲基和
溴甲基衍
生物,为图8a甲基-顺-octahydroquinazolin-2(1 ħ) -酮。后者的真实样品由顺式-2-
氯羰基-反式-2-
甲基环己烷甲酸甲酯制备。施密特反应产生顺式-2-
氨基衍
生物,可通过将1-碳酰
肼转化为顺式-2-
氨基甲基-1-甲基
环己胺,并用
光气环化。然而,与顺式-2-
氨基甲酰基-反式-2-
甲基环己烷羧酸甲酯的霍夫曼反应产生了顺式-2-
氨基-
1-甲基环己烷羧酸,将其转化为4a-甲基-顺式-八氢
喹唑啉-2(1 H)- 。