UPDATE 1-Rich, poor nations seek deal for UN finance meeting

* Poor nations want greater role for UN in world economy

* 14 leaders to attend UN meeting, no Western leaders

* 126 delegations continue to negotiate draft proposals (Adds D'Escoto briefing, diplomats, background)

By Louis Charbonneau

UNITED NATIONS, June 23 (Reuters) - Rich and poor nations on Tuesday edged closer to a deal on proposals for reforming the global financial system, but diplomats said there must be changes if a U.N. conference this week is to adopt them.

A three-day U.N. General Assembly meeting on the financial crisis and its impact on the developing world, originally scheduled for June 1-3, was postponed to June 24-26 when it became clear negotiators had no agreement on draft proposals.

Although the meeting has been billed as a summit, no Western leaders are expected to attend and only 14 presidents and prime ministers will show up. The other 112 countries taking part will send lower-level delegations.

The heads of the International Monetary Fund and World Bank will also be sending deputies, U.N. officials said.

Western envoys said that reflected dissatisfaction with the meeting's organizer, leftist U.N. General Assembly President Miguel D'Escoto of Nicaragua.