Who was the forward thinking Soviet Foreign Minister that Gorbachev used to create a more open relationship with the US?

Vladimir Fedorovich Petrovsky was the foreign minister of the soviet union. He created a more open relationship with the US.

Explanation:

Vladimir Fedorovich Petrovsky,who is well known as a Russian diplomat and professor,was appointed as Deputy Foreign Minister of the Soviet Union under the General Secretary of soviet at that times Mikhail Gorbachev. In 1992 he was elected as UN Under-Secretary-General of Political affairs in  New York. From  the year 1993 to 2002 he served as a Director-General of the United Nations Office at Geneva.During this period he served as Secretary-General of the Conference. Then days after his retirement,V. Petrovsky introduced the non-governmental organization Comprehensive Dialogue.

I'll go with that