Antibody dual-functionalisation enabled through a modular divinylpyrimidine disulfide rebridging strategy†
Stephen J.
Walsh, 
ab
Andrew J.
Counsell,
a
Nicola
Ashman,
ab
Kim T.
Mortensen,
a
Jason S.
Carroll
b
and
David R.
Spring
*a
ab
Andrew J.
Counsell,
a
Nicola
Ashman,
ab
Kim T.
Mortensen,
a
Jason S.
Carroll
b
and
David R.
Spring
*a
Abstract
Herein we report the development of a methodology for the dual-functionalisation of IgG antibodies. This is accomplished through the combination of disulfide rebridging divinylpyrimidine technology, with bicyclononyne and methylcyclopropene handles to facilitate sequential SPAAC and IEDDA reactions. Advantageously, the strategy does not require metal catalysis and avoids the need for purification between functionalisation steps.
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