改写句英文句子麻烦哪位大侠改写句子TheabsenceofNMRsignalsforMeN,MeO,andaromaticringmoietiessuggestedthattherewasnooxazolidineringintheskeletonandinferredthat2wasaC20hetisine-typealkaloid改成相同意思

Question

改写句英文句子
麻烦哪位大侠改写句子The absence of NMR signals for MeN,MeO,and aromatic ring moieties suggested that there was no oxazolidine ring in the skeleton and inferred that 2 was a C20 hetisine-type alkaloid
改成相同意思的不同说法,

Answer 1

The absence of NMR signals for MeN, MeO, and aromatic ring moieties suggested that there was no oxazolidine ring in the skeleton and inferred that 2 was a C20 hetisine-type alkaloid
改成相同意思的不同说法就是:

There were not any NMR signals for MeN, MeO, and aromatic ring moieties. So there was no oxazolidine ring in the skeleton. The above implied that 2 was a C20 hetisine-type alkaloid.
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