Yes, such a package was posted by the CoreFX team as a MyGet feed. To install, run this on the terminal:
#!/bin/sh
packageid="Microsoft.Build.Mono.Debug"
version="14.1.0.0-prerelease"
mono path/to/nuget.exe install $packageid -Version \
$version -Source "https://www.myget.org/F/dotnet-buildtools/"
mono $packageid.$version/lib/MSBuild.exe Foo.sln
.NET Core, .
EDIT: , , Mono 4.0.1 .