Soldado has been strongly linked with a move to White Hart Lane this summer and Villas-Boas acknowledged earlier this week that the Spain international is one of the players he is monitoring.
With only Emmanuel Adebayor and Jermain Defoe as senior striking options, Villas-Boas is looking to bring in another forward before the transfer window closes.
However, Villas-Boas conceded there has been no progress in recent days and is unsure whether Soldado will be moving to White Hart Lane.
"There is interest in the player, no matter what has happened in the last couple of days," said Villas-Boas.
"We are in conversations, in discussions, but that doesn't mean a deal is going to happen for a player that is a quality player.
"He has done well in Valencia for the last five seasons and had a good education from the Real Madrid school from where he's from.
"He's a player we are interested in having, but I don't have any further developments to give you."
Earlier this week, Valencia president Amadeo Salvo told Tottenham they will have to meet Soldado's €30million (£25.8m) release clause after rejecting an initial for the 28-year-old, who has also been linked with Liverpool.
"Soldado can go if he wants - for €30million and under our conditions," Salvo said at a club press conference.
"Valencia never had any intention of selling Soldado. If he goes then it is because the €30million figure has been met, not a cent less or a cent more.
"The buying club will also have to accept Valencia's conditions of payment also.
"We agreed to meet Tottenham again to discuss the ways of paying and we did that because we understood that his buy-out clause would be met.
"Speaking about ways that deals are paid is normal and this will be done in a way that suits the financial department of Valencia and not that of any other clubs.
"We listened to him and we said what we have always said - that the price is €30m, then the boy himself can decide if he leaves and that the conditions of pay are what they are."