yochananmarqos [1] filed a deletion request for orange [2]: Was dropped to the AUR in 2018 and no one ever adopted it. The synce- core dependency has since been deleted. The last upstream version was released in 2009.
[1] https://aur.archlinux.org/account/yochananmarqos/ [2] https://aur.archlinux.org/pkgbase/orange/
