Carbapenems of the formula ##STR1## wherein: P' is a removable protecting group for hydroxy; andPPM is a removable protecting group for carboxy;PPare useful intermediates for carbapenem antibiotics.
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机译：通式为## STR1 ##的碳青霉烯，其中：P'为羟基的可除去保护基; P P是羧基的可除去的保护基; P P是碳青霉烯抗生素的有用的中间体。
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