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[ÇóÖú] strained alkenes Ôõô·­Ò룿 ÒÑÓÐ1È˲ÎÓë

Knowing that azides react readily with strained alkenes such as norbornenes via 1,3-dipolar cycloadditions,our hypothesis is that the cycloaddition between PEG-azides and 2 which contains a norbornene moiety might be an easy entranceway toward PEG functionalized cyclic lactides.
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