In the interview with the BBC, he expressed concern that if the 2015 contract is not saved, then there will be a real risk to the war.
Tehran signed deal with the United States, United Kingdom, France, China, Germany and Russia three years ago to reinforce the Iranian nuclear program on condition of an international ban.
The Trump has been strongly opposed to the agreement signed by Barack Obama in the beginning. The US president will make a decision on whether to remain in the agreement until May 12.
Gutters said that the agreement with Iran was "important diplomatic victory". The UN Secretary-General said the agreement should be maintained.
"As long as we can not find a better option, it should not be canceled, we (Otherwise) we will face dangerous times, "he said.
Within a few days of Israel's claim of Tehran's expose of "secret nuclear program documents", Gutters Iran expressed its position on behalf of the nuclear deal.
Tel Aviv alleged that Iran is still pursuing "the knowledge" of the nuclear program in the backdrop of the deal.
New US Secretary of State Mike Pompey said on behalf of Israel's accusation, "The evidence that the Obama-era agreement was 'established on falsehood' is the proof of the unmarked document of Tel Aviv.
Although the three European friends of France, the United Kingdom and Germany have reiterated their position in the current agreement.
Tehran promised to reduce the number of centrifuges used to enrich uranium under the 'Joint Comprehensive Plan of Action' (JSPA) signed in 2015.
The country has agreed that the rich amount of reserves should be reduced below the required level of uranium production.
Immediately after the agreement, Iran reduced the number of centrifuges installed in their natanja and foredo centers and sent a small-scale tonnut uranium to Russia, the BBC said.
The representatives of the International Atomic Energy Agency are also visiting Tehran's nuclear facilities at regular intervals.
The Trump has been opposing the deal since its inception, 'Bad for the United States'.
If the European countries and the US Congress, which signed the treaty, did not take into account its concerns, then by threatening Tehran to impose sanctions on Tehran, he threatened to bring the United States out of the agreement.
The Republican President has been consistently saying that the nuclear enrichment of Iran is closed only for a specific time and there is no condition to stop Tehrik's ballistic missile development.
Troubles are also alleged that Iran is making an opportunity to buy weapons, terrorism and an opportunity to invade the Middle East with billions of dollars of economic benefits being lifted from the ban.
That is why he said repeatedly about his interest in moving on the road to a new contract if he needed to leave the current agreement and the US President.
Iran has warned about the possibility of US exit from the deal.
President Hassan Rouhani has said that the new mediators' do not have the right 'trump on seven parties' signed agreements.
Iran has called its nuclear program peaceful since its inception. Tehran claims that their nuclear program is not to build arms, but to increase fuel capacity.
Tehran has warned earlier that the United States will not have the effect of the agreement with six world powers if it leaves the deal. Foreign Minister Javed Zarif said that if necessary, his country would start the enrichment of uranium enrichment.