STRUCTURE OF CORONATINE
STRUCTURE OF CORONATINE
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DOI：
10.1021/ja00444a067
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发表时间：
1977-01-01
影响因子：
15
通讯作者：
MATSUMOTO, T
中科院分区：
文献类型：
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作者：
ICHIHARA, A;SHIRAISHI, K;MATSUMOTO, T
151-153 C分子式为C18H25O4N {m/e m + found， 319.1753；称为，319.1731)，并显示了以下光谱数据，UV XmaxEtOH 208 nm (e 8378)；IR iwKBr 1740（五元环C= 0）， 1620 (C= C), 3270, 1645, 1525 cm-1 (- conh -)；NMR （90 MHz）¿Me4SiCD3COCD3 0.94 (6 H, t， J= 7 Hz, CH2C//3), 3.15 (1 H, br。q,-CHCO), 6.50 （1 H, s,= CH）。1的高分辨质谱表明，冠状质由两个片段组成，C12H15O2 {m/e发现，191,1075；caled, 191.1071)和CsHioChN {m/e found， 128.0682；称为128.0710)，它们通过酰胺键相互连接。在m/e 191以下的其他离子峰与冠酸2a和2b的离子峰非常相似，分别为
151-153 C was formulated as C18H25O4N {m/e M+ found, 319.1753; caled, 319.1731) and shows the following spectral data, UV XmaxEtOH 208 nm (e 8378); IR iwKBr 1740 (five-membered ring C= 0), 1620 (C= C), 3270, 1645, 1525 cm-1 (-CONH-); NMR (90 MHz)¿ Me4SiCD3COCD3 0.94 (6 H, t, J= 7 Hz, CH2C//3), 3.15 (1 H, br. q,-CHCO), 6.50 (1 H, s,= CH). The high resolution mass spectrum of 1 indicates that coronatine consists of two fragments, C12H15O2 {m/e found, 191, 1075; caled, 191.1071) and CsHioChN {m/e found, 128.0682; caled 128.0710), which are bonded to each other by an amide linkage. Other ion peaks below m/e 191 are quite similar to those of coronafacic acids, 2a and 2b, which were