A gateway controls access to a region of a network by either granting or denying a client machine access to the network region based on whether a particular program is running on the client machine. This process prepares compounds of formula or :in which:R1 is an alkyl or an aryl; andR2, R3, R4 and R5 are especially a hydrogen atom or an alkyl,wherein the following are reacted in two steps:a) a boric precursor compound with an acetal compound to give a boronate compound; andb) the boronate compound with an amino alcohol compound. There are preferably a pair of leg supports for supporting the lower surface of the table top with each leg support having a ground engaging portion generally transverse to the longitudinal axis of the table top and a ground engaging portion generally parallel to the table top and extending laterally outwardly terminating in an upright seat supporting surface.