BRIEF-Tetraphase Pharmaceuticals Says Got Revised Proposal From Melinta Therapeutics

May 21 (Reuters) - Tetraphase Pharmaceuticals Inc :
   * TETRAPHASE PHARMACEUTICALS - GOT A REVISED PROPOSAL FROM MELINTA THERAPEUTICS
   * TETRAPHASE PHARMA - UNDER REVISED PROPOSAL, MELINTA TO BUY CO FOR ABOUT $27.0 MILLION IN CASH, PLUS $12.5 MILLION IN CASH PAYABLE UNDER CONTINGENT VALUE RIGHTS
   * TETRAPHASE PHARMA - UNDER REVISED MELINTA PROPOSAL, UPFRONT CASH CONSIDERATION WOULD BE $1.21/SHARE OF TETRAPHASE COMMON STOCK
   * TETRAPHASE - UNDER REVISED PROPOSAL, UPFRONT CASH CONSIDERATION TO BE $1.75/SHARE OF CO'S COMMON STOCK UNDERLYING COMMON STOCK WARRANTS ISSUED IN 2019
   * TETRAPHASE - UNDER REVISED PROPOSAL, UPFRONT CASH CONSIDERATION TO BE $1.75/SHARE OF CO'S COMMON STOCK UNDERLYING COMMON STOCK WARRANTS ISSUED IN 2020

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