【结 构 式】 |
【分子编号】34364 【品名】2-ethylbenzohydrazide 【CA登记号】 |
【 分 子 式 】C9H12N2O 【 分 子 量 】164.20716 【元素组成】C 65.83% H 7.37% N 17.06% O 9.74% |
与该中间体有关的原料药合成路线共 3 条
合成路线1
该中间体在本合成路线中的序号:(II)The condensation of ethyl 3-metboxybenzimidate (I) with 2-ethybenzoic hydrazide (II) in refluxing CH2Cl2 gives the benzoylamidrazone (III), which is then cyclized by means of K2CO3 in refluxing 2-etoxyethanol.
【1】 Omodei-Salé, A.; Galliani, G.; Consonni, P.; A new class of nonhormonal pregnancy-terminating agents. Synthesis and contragestational activity of 3,5-diaryl-s-triazoles. J Med Chem 1983, 26, 8, 1187-92. |
合成路线2
该中间体在本合成路线中的序号:(II)A new method for the synthesis of DL-111-IT has been reported: By cyclization of m-methoxybenzonitrile (I) with ethoxybenzoylhydrazide (II) in refluxing methanol.
【1】 Neelima; Bhaduri, A.P.; Reaction of substituted acid hydrazides with substituted benzonitriles: Formatio of isomeric triazoles. Indian J Chem 1983, 22B, 1, 79-80. |
合成路线3
该中间体在本合成路线中的序号:(I)By cyclization of ethyl m-methoxybenzimidate (I) with 2-ethylbenzoyl hydrazide (II) at 125 C.
【1】 Omodei Sale, A.; Consonni, P.; Galliani, G.; Lerner, L. (Lepetit SpA); 3,5-Disubstd.-1H-1,2,4-triazoles. DE 2819372 . |
【2】 Hillier, K.; Blancafort, P.; Castaner, J.; Serradell, M.N.; DL-111-IT. Drugs Fut 1982, 7, 12, 875. |
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