Application of 142733-64-0, These common heterocyclic compound, 142733-64-0, name is tert-Butyl (cis-3-(hydroxymethyl)cyclobutyl)carbamate, its traditional synthetic route has been very mature, but the traditional synthetic route has various shortcomings, such as complicated route, low yield, poor purity, etc, below Introduce a new synthetic route.
Under nitrogen protection,Compound 3-Boc aminocyclobutylmethanol (83f) (350.0 mg, 1.7 mmol)And triethylamine (528.0 mg, 5.2 mmol) was dissolved in 10 mL of dichloromethane.Under ice water bath, methylsulfonyl chloride (219.0 mg, 1.9 mmol) was added dropwise.Stir at room temperature for 3 h.Dichloromethane and 0.2 N of dilute hydrochloric acid were added and extracted.The organic layer was washed twice with brine, dried and dried.The compound 3-((tert-butoxycarbonyl)amino)cyclobutyl)methyl methanesulfonate (83 g) (330.0 mg, 1.2 mmol)The next reaction was directly administered, and the yield was 67.9%.
The synthetic route of 142733-64-0 has been constantly updated, and we look forward to future research findings.
Reference:
Patent; Chengdu Haichuang Pharmaceutical Co., Ltd.; Du Wu; Wen Kun; Ai Chaowu; He Jinyun; Li Xinghai; Chen Yuanwei; (28 pag.)CN109988120; (2019); A;,
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