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We present a measurement of time-dependent
CP-violating asymmetries in fully reconstructed $B^0->D^{(*)\pm}\pi^\mp$
decays in a data sample of
approximately 88 million $Y(4S)\rightarrow B\bar{B}$ decays collected
with the BaBar detector at the PEP-II asymmetric-energy B factory at SLAC.
We interpret the results in terms of the angles of the
Cabibbo-Kobayashi-Maskawa unitarity triangle, and
find $|sin(2\beta+\gamma)|>0.69$ at 68\% confidence
level. We exclude the hypothesis of no CP-violation ($sin(2\beta+\gamma) =
0$) at 83\% confidence level.
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