EP1881829A2 - UNSOLVATED AND HOST-GUEST SOLVATED CRYSTALLINE FORMS OF (2E,4S)-4-[(N-{[(2R)-1-ISOPROPYLPIPERIDIN-2-YL]-CARBONYL}-3-METHYL-L-VALYL)(METHYL)AMINO]-2,5-DIMETHYLHEX-2-ENOIC ACID AND THEIR PHARMACEUTICAL USES