Four new cyclic decapeptides, auyuittuqamides A–D (1–4), were obtained from Sesquicillium microsporum RKAG 186 obtained from marine sediment collected from the intertidal zone of Frobisher Bay, Nunavut, Canada. The structures of the compounds were elucidated by NMR spectroscopy and tandem mass spectrometry. The absolute configurations of the amino acids were determined using Marfey’s method.

中文翻译：

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Auyuittuqamides A–D，来自小孢子藻 RKAG 186 的环状十肽，从 Frobisher Bay 沉积物中分离

四个新的环十肽，auyuittuqamides A-d（1 - 4），为得自Sesquicillium孢子从弗罗比舍湾，努勒维特，加拿大的潮间带收集海洋沉积物获得RKAG 186。化合物的结构通过核磁共振谱和串联质谱进行了阐明。使用Marfey's方法确定氨基酸的绝对构型。