Valcavi U, Innocenti S, Salati M
Farmaco Sci. 1975 Oct;30(10):807-14.
Penicillin V (S)-sulphoxide (I), treated with methanesulphonic acid in benzene and dimethylacetamide, gives the decarboxylated increment3-cephem compound (IV) and a new product of rearrangement to which the structure of the 4-[N-(1'-carboxy-2'-methylenepropyl)carbamoyl]-2-phenoxymethylthiazole (VIII) is ascribed.
青霉素V（S）-亚砜（I）在苯和二甲基乙酰胺中用甲磺酸处理，得到脱羧增量3-头孢烯化合物（IV）和一种重排的新产品，其结构被确定为4-[N-(1'-羧基-2'-亚甲基丙基)氨基甲酰基]-2-苯氧甲基噻唑（VIII）。
