179688-26-7Relevant articles and documents
Synthetic method of erlotinib
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, (2020/07/12)
The invention relates to a synthetic method of erlotinib, and belongs to the technical field of chemical synthesis. The preparation method comprises the following synthesis steps: (1) reacting a compound I with 2-chloroethyl methyl ether to generate a compound II; (2) oxidizing the compound II through peracetic acid to generate a compound III; (3) reacting the compound III with benzene sulfonyl chloride to generate a compound IV; (4) carrying out a ring closing reaction on the compound IV, ammonium chloride and formamide to generate a compound V; (5) reacting the compound V with phosphorus oxychloride to generate a compound VI; and (6) reacting the compound VI with m-aminophenylacetylene to generate a compound VII erlotinib. The invention provides a new synthetic route, and the used raw materials are common materials, are simple and easily available, can adapt to production of various scales, and the synthetic method has good industrial production prospects.
Method for synthesizing erlotinib intermediate with microchannel reactor
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Paragraph 0048-0050; 0060; 0070; 0080; 0089-0093; 0101; 0132, (2018/09/08)
The invention discloses a method for synthesizing an erlotinib intermediate with a microchannel reactor, belongs to the field of synthesis of anti-tumor drugs in organic synthesis and solves the problems of low yield, poor purity, high energy consumption,
Preparation method of 4,-5-bis(2-methoxyl ethyoxyl)-2-ethyl nitrobenzoate
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Paragraph 0027, (2017/08/31)
The invention relates to a preparation method of 4,-5-bis(2-methoxyl ethyoxyl)-2-ethyl nitrobenzoate. The preparation method comprises the following steps: (1) enabling 4,5-dihydroxy ethyl benzoate to react with a protective agent, then reacting with nitr