Refers to the compound 3 - N - Desmethyl - 4 - O - (2 - dietilaminoetanoil) - 6 - methyl - 9A - aza - 9th - homoeritromicina and Crystalline forms of the same as: 1) The Crystalline form whose pattern of XRPD expressed in degrees two Theta Peaks 4.6 presents 5.6, 7.7, 9.6, 10.6 11.0, 11.6, 11.8, 12.2, 14.1, 15. 9, 18.4, 19.0, 20.5, 21 and 22.0 (b) The Crystalline Form 2 whose pattern of XRPD expressed in degrees two Theta presents Peaks 9.1 9.4, 10.4, 10.9, 11.5, 13.0 12.0, 13.4, 14.7 15.4, 15.7, 16.5, 16.8, 18.7, 19.2 20.8 19.5, 19.8 and and (c) 3 whose Crystalline form XRPD Pattern expressed in degrees two Theta Peaks 5.5 presents 7.3 7.9 9.1 9.5, 10.0, 10.5, 11.5 11.0, 12.0, 12.6, 14.8, 15.5, 15.8, 16.6, 16.9, 18.2, 18.9 and 19.5. It also refers to a process of obtaining. This Compound is useful in the treatment of chronic obstructive pulmonary disease, cystic fibrosis, emphysema, bronchitis, asthmaSE REFIERE AL COMPUESTO 3-N-DESMETIL-4"-O-(2-DIETILAMINOETANOIL)-6-O-METIL-9A-AZA-9A-HOMOERITROMICINA A Y A FORMAS CRISTALINAS DEL MISMO TAL COMO: A) LA FORMA 1 CRISTALINA CUYO PATRON DE XRPD EXPRESADO EN GRADOS 2 THETA PRESENTA LOS PICOS 4.6, 5.6, 7.7, 9.6, 10.6, 11.0, 11.6, 11.8, 12.2, 14.1, 15.9, 18.4, 19.0, 20.5, 21.1 Y 22.0 B) LA FORMA 2 CRISTALINA CUYO PATRON DE XRPD EXPRESADO EN GRADOS 2 THETA PRESENTA LOS PICOS 9.1, 9.4, 10.4, 10.9, 11.5, 12.0, 13.0, 13.4, 14.7, 15.4, 15.7, 16.5, 16.8, 18.7, 19.2, 19.5, 19.8 Y 20.8 Y C) LA FORMA 3 CRISTALINA CUYO PATRON DE XRPD EXPRESADO EN GRADOS 2 THETA PRESENTA LOS PICOS 5.5, 7.3, 7.9, 9.1, 9.5, 10.0, 10.5, 11.0, 11.5, 12.0, 12.6, 14.8, 15.5, 15.8, 16.6, 16.9, 18.2, 18.9 Y 19.5. TAMBIEN SE REFIERE A UN PROCESO DE OBTENCION. DICHO COMPUESTO ES UTIL EN EL TRATAMIENTO DE LA ENFERMEDAD PULMONAR OBSTRUCTIVA CRONICA, FIBROSIS QUISTICA, BRONQUITIS, ENFISEMA, ASMA
