Nikolai Aleksandrovich Uglanov (1886–1937) was a Russian Bolshevik

Bolshevik

The Bolsheviks, originally also Bolshevists , derived from bol'shinstvo, "majority") were a faction of the Marxist Russian Social Democratic Labour Party which split apart from the Menshevik faction at the Second Party Congress in 1903....

 politician, who played an important role in the government of the Soviet Union

Soviet Union

The Soviet Union , officially the Union of Soviet Socialist Republics , was a constitutionally socialist state that existed in Eurasia between 1922 and 1991....

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• 20 August 1924 - November 27, 1928, First Secretary of the Moscow Communist Party
  First Secretary of the Moscow Communist Party
  The First Secretary of the Moscow gorkom of the Communist Party of the Soviet Union was the position of highest authority in the city of Moscow roughly equating to that of mayor. The position was created on November 10, 1917, following the October Revolution and abolished on August 24, 1991...
  
  
• Aug 1924 replaced Zelensky on the Secretariat of the CPSU Central Committee
  Secretariat of the CPSU Central Committee
  The Secretariat of the CPSU Central Committee was a key body within the Communist Party of the Soviet Union and was responsible for the central administration of the party as opposed to drafting government policy which was usually handled by the Politburo...
  
  
• 1 January 1926 elected candidate member of the Politburo of the Central Committee of the Communist Party of the Soviet Union
  Politburo of the Central Committee of the Communist Party of the Soviet Union
  The Politburo , known as the Presidium from 1952 to 1966, functioned as the central policymaking and governing body of the Communist Party of the Soviet Union.-Duties and responsibilities:The...
  
  
• 29 November 1928 — 1 July 1930, People's Commissar for Labour
  People's Commissariat for Labour
  The People's Commissariat for Labour was established by the Bolsheviks following their seizure of power during the October Revolution. It functioned as a ministry in the new government which was known as Council of the People's Commissars....
  
  

In 1930 he became associated with Martemyan Ryutin

Martemyan Ryutin

Martemyan Nikitich Ryutin was a Russian Marxist revolutionary and a political functionary of the Russian Communist Party. Ryutin is best remembered as the leader of a pro-peasant political faction organized against Soviet leader Joseph Stalin in the early 1930s and as the primary author of a 200...

, whose name was given to the Ryutin Platform. Ryutin was Secretary of the Krasnaya Presnya district Party committee in Moscow

Moscow

Moscow is the capital, the most populous city, and the most populous federal subject of Russia. The city is a major political, economic, cultural, scientific, religious, financial, educational, and transportation centre of Russia and the continent...

. Uglanov was expelled from the Party along with Ryutin in autumn 1932 in what is known as the Ryutin Affair

Ryutin Affair

The Ryutin Affair was one of the last attempts to oppose the Soviet leader Joseph Stalin within the Soviet Communist Party.Martemyan Ryutin was an Old Bolshevik and a secretary of the Moscow City Communist Party Committee in the 1920s...

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He was executed in 1937.