61416-34-0Relevant articles and documents
Synthesis of 2-Amino Substituted Oxazoles from α-Amino Ketones and Isothiocyanates via Sequential Addition and I2-Mediated Desulfurative Cyclization
Chang, Junbiao,Yu, Wenquan,Zhang, Shuangshuang,Zhao, Qiongli,Zhao, Yifei
supporting information, (2020/04/29)
Oxazol-2-amines were synthesized by annulation of α-amino ketones and isothiocyanates. This sequential synthetic process involves addition of α-amino ketones to isothiocyanates and I2-promoted desulfurative cyclization omitting isolation of the less stable thiourea intermediates. It is transition metal-free and operationally simple, providing access to a variety of 2-amino substituted oxazole derivatives under mild reaction conditions. (Figure presented.).
NOVEL 5,6-DIHYDROPYRAZOLO[3,4-E] [L,4]DIAZEPIN-4 (IH) -ONE DERIVATIVES FOR THE TREATMENT OF ASTHMA AND CHRONIC OBSTRUCTIVE PULMONARY DISEASE.
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Page/Page column 38, (2008/06/13)
The present invention provides a compound of a formula (I): wherein the variables are defined herein; to a process for preparing such a compound; and to the use of such a compound in the treatment of a PDE 4 mediated disease state.